re PR target/67089 (Integer overflow checks not optimized on x86/x86_64)
PR target/67089 * tree-ssa-math-opts.c (uaddsub_overflow_check_p, match_uaddsub_overflow): New functions. (pass_optimize_widening_mul::execute): Call match_uaddsub_overflow. * gcc.dg/pr67089-1.c: New test. * gcc.dg/pr67089-2.c: New test. * gcc.dg/pr67089-3.c: New test. * gcc.dg/pr67089-4.c: New test. * gcc.dg/pr67089-5.c: New test. * gcc.dg/pr67089-6.c: New test. * gcc.dg/pr67089-7.c: New test. From-SVN: r230856
This commit is contained in:
Jakub Jelinek
Jakub Jelinek
parent
85c69b0b05
commit
6837d899c8
@ -1,3 +1,10 @@
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2015-11-25 Jakub Jelinek <jakub@redhat.com>
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PR target/67089
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* tree-ssa-math-opts.c (uaddsub_overflow_check_p,
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match_uaddsub_overflow): New functions.
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(pass_optimize_widening_mul::execute): Call match_uaddsub_overflow.
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2015-11-25 Richard Biener <rguenther@suse.de>
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PR tree-optimization/68492
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@ -1,3 +1,14 @@
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2015-11-25 Jakub Jelinek <jakub@redhat.com>
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PR target/67089
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* gcc.dg/pr67089-1.c: New test.
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* gcc.dg/pr67089-2.c: New test.
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* gcc.dg/pr67089-3.c: New test.
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* gcc.dg/pr67089-4.c: New test.
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* gcc.dg/pr67089-5.c: New test.
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* gcc.dg/pr67089-6.c: New test.
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* gcc.dg/pr67089-7.c: New test.
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2015-11-25 Richard Biener <rguenther@suse.de>
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PR tree-optimization/68502
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112
gcc/testsuite/gcc.dg/pr67089-1.c
Normal file
112
gcc/testsuite/gcc.dg/pr67089-1.c
Normal file
@ -0,0 +1,112 @@
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/* PR target/67089 */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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extern void abort (void);
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int cnt, d;
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__attribute__((noinline, noclone))
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void foo (int x)
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{
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asm volatile ("" : "+m" (d) : "g" (x) : "memory");
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cnt++;
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}
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#define T(n, type, op, cond) \
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__attribute__((noinline, noclone)) \
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type \
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f##n (type x, type y) \
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{ \
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type r = op; \
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cond; \
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return r; \
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}
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T (1, unsigned int, x - y, if (r > x) foo (0))
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T (2, unsigned long, x - y, if (r <= x) foo (0))
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T (3, unsigned short, x - y, if (x < r) foo (r))
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T (4, unsigned long long, x - y, if (x >= r) foo (0))
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T (5, unsigned int, x - y, if (r >= x) foo (0))
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T (6, unsigned long, x - y, if (r < x) foo (0))
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T (7, unsigned short, x - y, if (x <= r) foo (r))
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T (8, unsigned long long, x - y, if (d || x > r) foo (0))
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T (9, unsigned int, x - y, if (d || r > x) foo (0))
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T (10, unsigned long, x - y, if (d || r <= x) foo (0))
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T (11, unsigned char, x - y, if (d || x < r) foo (0))
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T (12, unsigned long long, x - y, if (d || x >= r) foo (0))
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T (13, unsigned int, x - y, if (d || r >= x) foo (0))
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T (14, unsigned long, x - y, if (d || r < x) foo (0))
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T (15, unsigned short, x - y, if (d || x <= r) foo (0))
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T (16, unsigned long long, x - y, if (d || x > r) foo (0))
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int
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main ()
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{
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if (f1 (5, 3) != 2U || cnt != 0) abort ();
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if (f1 (5, 7) != -2U || cnt != 1) abort ();
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if (f1 (5, 5) != 0U || cnt != 1) abort ();
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if (f1 (5, 0) != 5U || cnt != 1) abort ();
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if (f2 (7, 1) != 6UL || cnt != 2) abort ();
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if (f2 (7, 8) != -1UL || cnt != 2) abort ();
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if (f2 (9, 9) != 0UL || cnt != 3) abort ();
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if (f2 (9, 0) != 9UL || cnt != 4) abort ();
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if (f3 (15, 14) != 1 || cnt != 4) abort ();
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if (f3 (15, 25) != (unsigned short) -10 || cnt != 5) abort ();
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if (f3 (15, 15) != 0 || cnt != 5) abort ();
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if (f3 (15, 0) != 15 || cnt != 5) abort ();
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if (f4 (9132, 9127) != 5ULL || cnt != 6) abort ();
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if (f4 (9132, 9137) != -5ULL || cnt != 6) abort ();
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if (f4 (9132, 9132) != 0 || cnt != 7) abort ();
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if (f4 (9132, 0) != 9132ULL || cnt != 8) abort ();
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if (f5 (5, 3) != 2U || cnt != 8) abort ();
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if (f5 (5, 7) != -2U || cnt != 9) abort ();
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if (f5 (5, 5) != 0U || cnt != 9) abort ();
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if (f5 (5, 0) != 5U || cnt != 10) abort ();
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if (f6 (7, 1) != 6UL || cnt != 11) abort ();
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if (f6 (7, 8) != -1UL || cnt != 11) abort ();
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if (f6 (9, 9) != 0UL || cnt != 12) abort ();
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if (f6 (9, 0) != 9UL || cnt != 12) abort ();
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if (f7 (15, 14) != 1 || cnt != 12) abort ();
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if (f7 (15, 25) != (unsigned short) -10 || cnt != 13) abort ();
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if (f7 (15, 15) != 0 || cnt != 13) abort ();
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if (f7 (15, 0) != 15 || cnt != 14) abort ();
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if (f8 (9132, 9127) != 5ULL || cnt != 15) abort ();
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if (f8 (9132, 9137) != -5ULL || cnt != 15) abort ();
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if (f8 (9132, 9132) != 0 || cnt != 16) abort ();
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if (f8 (9132, 0) != 9132ULL || cnt != 16) abort ();
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cnt = 0;
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if (f9 (5, 3) != 2U || cnt != 0) abort ();
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if (f9 (5, 7) != -2U || cnt != 1) abort ();
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if (f9 (5, 5) != 0U || cnt != 1) abort ();
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if (f9 (5, 0) != 5U || cnt != 1) abort ();
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if (f10 (7, 1) != 6UL || cnt != 2) abort ();
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if (f10 (7, 8) != -1UL || cnt != 2) abort ();
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if (f10 (9, 9) != 0UL || cnt != 3) abort ();
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if (f10 (9, 0) != 9UL || cnt != 4) abort ();
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if (f11 (15, 14) != 1 || cnt != 4) abort ();
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if (f11 (15, 25) != (unsigned char) -10 || cnt != 5) abort ();
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if (f11 (15, 15) != 0 || cnt != 5) abort ();
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if (f11 (15, 0) != 15 || cnt != 5) abort ();
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if (f12 (9132, 9127) != 5ULL || cnt != 6) abort ();
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if (f12 (9132, 9137) != -5ULL || cnt != 6) abort ();
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if (f12 (9132, 9132) != 0 || cnt != 7) abort ();
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if (f12 (9132, 0) != 9132ULL || cnt != 8) abort ();
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if (f13 (5, 3) != 2U || cnt != 8) abort ();
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if (f13 (5, 7) != -2U || cnt != 9) abort ();
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if (f13 (5, 5) != 0U || cnt != 9) abort ();
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if (f13 (5, 0) != 5U || cnt != 10) abort ();
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if (f14 (7, 1) != 6UL || cnt != 11) abort ();
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if (f14 (7, 8) != -1UL || cnt != 11) abort ();
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if (f14 (9, 9) != 0UL || cnt != 12) abort ();
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if (f14 (9, 0) != 9UL || cnt != 12) abort ();
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if (f15 (15, 14) != 1 || cnt != 12) abort ();
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if (f15 (15, 25) != (unsigned short) -10 || cnt != 13) abort ();
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if (f15 (15, 15) != 0 || cnt != 13) abort ();
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if (f15 (15, 0) != 15 || cnt != 14) abort ();
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if (f16 (9132, 9127) != 5ULL || cnt != 15) abort ();
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if (f16 (9132, 9137) != -5ULL || cnt != 15) abort ();
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if (f16 (9132, 9132) != 0 || cnt != 16) abort ();
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if (f16 (9132, 0) != 9132ULL || cnt != 16) abort ();
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return 0;
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}
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112
gcc/testsuite/gcc.dg/pr67089-2.c
Normal file
112
gcc/testsuite/gcc.dg/pr67089-2.c
Normal file
@ -0,0 +1,112 @@
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/* PR target/67089 */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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extern void abort (void);
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int cnt, d;
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__attribute__((noinline, noclone))
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void foo (int x)
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{
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asm volatile ("" : "+m" (d) : "g" (x) : "memory");
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cnt++;
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}
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#define T(n, type, op, cond) \
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__attribute__((noinline, noclone)) \
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type \
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f##n (type x, type y) \
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{ \
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type r = op; \
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cond; \
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return r; \
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}
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T (1, unsigned int, x - y, if (r > y) foo (0))
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T (2, unsigned long, x - y, if (r <= y) foo (0))
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T (3, unsigned short, x - y, if (y < r) foo (r))
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T (4, unsigned long long, x - y, if (y >= r) foo (0))
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T (5, unsigned int, x - y, if (r >= y) foo (0))
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T (6, unsigned long, x - y, if (r < y) foo (0))
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T (7, unsigned short, x - y, if (y <= r) foo (r))
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T (8, unsigned long long, x - y, if (d || y > r) foo (0))
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T (9, unsigned int, x - y, if (d || r > y) foo (0))
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T (10, unsigned long, x - y, if (d || r <= y) foo (0))
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T (11, unsigned char, x - y, if (d || y < r) foo (0))
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T (12, unsigned long long, x - y, if (d || y >= r) foo (0))
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T (13, unsigned int, x - y, if (d || r >= y) foo (0))
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T (14, unsigned long, x - y, if (d || r < y) foo (0))
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T (15, unsigned short, x - y, if (d || y <= r) foo (0))
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T (16, unsigned long long, x - y, if (d || y > r) foo (0))
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int
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main ()
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{
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if (f1 (5, 3) != 2U || cnt != 0) abort ();
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if (f1 (5, 7) != -2U || cnt != 1) abort ();
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if (f1 (5, 5) != 0U || cnt != 1) abort ();
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if (f1 (5, 0) != 5U || cnt != 2) abort ();
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if (f2 (7, 1) != 6UL || cnt != 2) abort ();
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if (f2 (7, 8) != -1UL || cnt != 2) abort ();
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if (f2 (9, 9) != 0UL || cnt != 3) abort ();
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if (f2 (9, 0) != 9UL || cnt != 3) abort ();
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if (f3 (15, 14) != 1 || cnt != 3) abort ();
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if (f3 (15, 25) != (unsigned short) -10 || cnt != 4) abort ();
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if (f3 (15, 15) != 0 || cnt != 4) abort ();
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if (f3 (15, 0) != 15 || cnt != 5) abort ();
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if (f4 (9132, 9127) != 5ULL || cnt != 6) abort ();
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if (f4 (9132, 9137) != -5ULL || cnt != 6) abort ();
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if (f4 (9132, 9132) != 0 || cnt != 7) abort ();
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if (f4 (9132, 0) != 9132ULL || cnt != 7) abort ();
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if (f5 (5, 3) != 2U || cnt != 7) abort ();
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if (f5 (5, 7) != -2U || cnt != 8) abort ();
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if (f5 (5, 5) != 0U || cnt != 8) abort ();
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if (f5 (5, 0) != 5U || cnt != 9) abort ();
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if (f6 (7, 1) != 6UL || cnt != 9) abort ();
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if (f6 (7, 8) != -1UL || cnt != 9) abort ();
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if (f6 (9, 9) != 0UL || cnt != 10) abort ();
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if (f6 (9, 0) != 9UL || cnt != 10) abort ();
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if (f7 (15, 14) != 1 || cnt != 10) abort ();
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if (f7 (15, 25) != (unsigned short) -10 || cnt != 11) abort ();
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if (f7 (15, 15) != 0 || cnt != 11) abort ();
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if (f7 (15, 0) != 15 || cnt != 12) abort ();
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if (f8 (9132, 9127) != 5ULL || cnt != 13) abort ();
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if (f8 (9132, 9137) != -5ULL || cnt != 13) abort ();
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if (f8 (9132, 9132) != 0 || cnt != 14) abort ();
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if (f8 (9132, 0) != 9132ULL || cnt != 14) abort ();
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cnt = 0;
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if (f9 (5, 3) != 2U || cnt != 0) abort ();
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if (f9 (5, 7) != -2U || cnt != 1) abort ();
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if (f9 (5, 5) != 0U || cnt != 1) abort ();
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if (f9 (5, 0) != 5U || cnt != 2) abort ();
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if (f10 (7, 1) != 6UL || cnt != 2) abort ();
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if (f10 (7, 8) != -1UL || cnt != 2) abort ();
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if (f10 (9, 9) != 0UL || cnt != 3) abort ();
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if (f10 (9, 0) != 9UL || cnt != 3) abort ();
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if (f11 (15, 14) != 1 || cnt != 3) abort ();
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if (f11 (15, 25) != (unsigned char) -10 || cnt != 4) abort ();
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if (f11 (15, 15) != 0 || cnt != 4) abort ();
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if (f11 (15, 0) != 15 || cnt != 5) abort ();
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if (f12 (9132, 9127) != 5ULL || cnt != 6) abort ();
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if (f12 (9132, 9137) != -5ULL || cnt != 6) abort ();
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if (f12 (9132, 9132) != 0 || cnt != 7) abort ();
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if (f12 (9132, 0) != 9132ULL || cnt != 7) abort ();
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if (f13 (5, 3) != 2U || cnt != 7) abort ();
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if (f13 (5, 7) != -2U || cnt != 8) abort ();
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if (f13 (5, 5) != 0U || cnt != 8) abort ();
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if (f13 (5, 0) != 5U || cnt != 9) abort ();
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if (f14 (7, 1) != 6UL || cnt != 9) abort ();
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if (f14 (7, 8) != -1UL || cnt != 9) abort ();
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if (f14 (9, 9) != 0UL || cnt != 10) abort ();
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if (f14 (9, 0) != 9UL || cnt != 10) abort ();
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if (f15 (15, 14) != 1 || cnt != 10) abort ();
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if (f15 (15, 25) != (unsigned short) -10 || cnt != 11) abort ();
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if (f15 (15, 15) != 0 || cnt != 11) abort ();
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if (f15 (15, 0) != 15 || cnt != 12) abort ();
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if (f16 (9132, 9127) != 5ULL || cnt != 13) abort ();
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if (f16 (9132, 9137) != -5ULL || cnt != 13) abort ();
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if (f16 (9132, 9132) != 0 || cnt != 14) abort ();
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if (f16 (9132, 0) != 9132ULL || cnt != 14) abort ();
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return 0;
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}
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112
gcc/testsuite/gcc.dg/pr67089-3.c
Normal file
112
gcc/testsuite/gcc.dg/pr67089-3.c
Normal file
@ -0,0 +1,112 @@
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/* PR target/67089 */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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extern void abort (void);
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int cnt, d;
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__attribute__((noinline, noclone))
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void foo (int x)
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{
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asm volatile ("" : "+m" (d) : "g" (x) : "memory");
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cnt++;
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}
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#define T(n, type, op, cond) \
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__attribute__((noinline, noclone)) \
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type \
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f##n (type x, type y) \
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{ \
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type r = op; \
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cond; \
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return r; \
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}
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T (1, unsigned int, x + y, if (r > x) foo (0))
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T (2, unsigned long, x + y, if (r <= x) foo (0))
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T (3, unsigned short, x + y, if (x < r) foo (r))
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T (4, unsigned long long, x + y, if (x >= r) foo (0))
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T (5, unsigned int, x + y, if (r >= x) foo (0))
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T (6, unsigned long, x + y, if (r < x) foo (0))
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T (7, unsigned short, x + y, if (x <= r) foo (r))
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T (8, unsigned long long, x + y, if (d || x > r) foo (0))
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T (9, unsigned int, x + y, if (d || r > x) foo (0))
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T (10, unsigned long, x + y, if (d || r <= x) foo (0))
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T (11, unsigned char, x + y, if (d || x < r) foo (0))
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T (12, unsigned long long, x + y, if (d || x >= r) foo (0))
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T (13, unsigned int, x + y, if (d || r >= x) foo (0))
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T (14, unsigned long, x + y, if (d || r < x) foo (0))
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T (15, unsigned short, x + y, if (d || x <= r) foo (0))
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T (16, unsigned long long, x + y, if (d || x > r) foo (0))
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int
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main ()
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{
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if (f1 (-7U, 0) != -7U || cnt != 0) abort ();
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if (f1 (-7U, 6) != -1U || cnt != 1) abort ();
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if (f1 (-7U, 7) != 0U || cnt != 1) abort ();
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if (f1 (-7U, 8) != 1U || cnt != 1) abort ();
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if (f2 (-9UL, 0) != -9UL || cnt != 2) abort ();
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if (f2 (-9UL, 8) != -1UL || cnt != 2) abort ();
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if (f2 (-9UL, 9) != 0UL || cnt != 3) abort ();
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if (f2 (-9UL, 10) != 1UL || cnt != 4) abort ();
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if (f3 (-15, 0) != (unsigned short) -15 || cnt != 4) abort ();
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if (f3 (-15, 14) != (unsigned short) -1 || cnt != 5) abort ();
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if (f3 (-15, 15) != 0 || cnt != 5) abort ();
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if (f3 (-15, 16) != 1 || cnt != 5) abort ();
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if (f4 (-9132ULL, 0) != -9132ULL || cnt != 6) abort ();
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if (f4 (-9132ULL, 9131) != -1ULL || cnt != 6) abort ();
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if (f4 (-9132ULL, 9132) != 0 || cnt != 7) abort ();
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if (f4 (-9132ULL, 9133) != 1ULL || cnt != 8) abort ();
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if (f5 (-7U, 0) != -7U || cnt != 9) abort ();
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if (f5 (-7U, 6) != -1U || cnt != 10) abort ();
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if (f5 (-7U, 7) != 0U || cnt != 10) abort ();
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if (f5 (-7U, 8) != 1U || cnt != 10) abort ();
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if (f6 (-9UL, 0) != -9UL || cnt != 10) abort ();
|
||||
if (f6 (-9UL, 8) != -1UL || cnt != 10) abort ();
|
||||
if (f6 (-9UL, 9) != 0UL || cnt != 11) abort ();
|
||||
if (f6 (-9UL, 10) != 1UL || cnt != 12) abort ();
|
||||
if (f7 (-15, 0) != (unsigned short) -15 || cnt != 13) abort ();
|
||||
if (f7 (-15, 14) != (unsigned short) -1 || cnt != 14) abort ();
|
||||
if (f7 (-15, 15) != 0 || cnt != 14) abort ();
|
||||
if (f7 (-15, 16) != 1 || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 0) != -9132ULL || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 9131) != -1ULL || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 9132) != 0 || cnt != 15) abort ();
|
||||
if (f8 (-9132ULL, 9133) != 1ULL || cnt != 16) abort ();
|
||||
cnt = 0;
|
||||
if (f9 (-7U, 0) != -7U || cnt != 0) abort ();
|
||||
if (f9 (-7U, 6) != -1U || cnt != 1) abort ();
|
||||
if (f9 (-7U, 7) != 0U || cnt != 1) abort ();
|
||||
if (f9 (-7U, 8) != 1U || cnt != 1) abort ();
|
||||
if (f10 (-9UL, 0) != -9UL || cnt != 2) abort ();
|
||||
if (f10 (-9UL, 8) != -1UL || cnt != 2) abort ();
|
||||
if (f10 (-9UL, 9) != 0UL || cnt != 3) abort ();
|
||||
if (f10 (-9UL, 10) != 1UL || cnt != 4) abort ();
|
||||
if (f11 (-15, 0) != (unsigned char) -15 || cnt != 4) abort ();
|
||||
if (f11 (-15, 14) != (unsigned char) -1 || cnt != 5) abort ();
|
||||
if (f11 (-15, 15) != 0 || cnt != 5) abort ();
|
||||
if (f11 (-15, 16) != 1 || cnt != 5) abort ();
|
||||
if (f12 (-9132ULL, 0) != -9132ULL || cnt != 6) abort ();
|
||||
if (f12 (-9132ULL, 9131) != -1ULL || cnt != 6) abort ();
|
||||
if (f12 (-9132ULL, 9132) != 0 || cnt != 7) abort ();
|
||||
if (f12 (-9132ULL, 9133) != 1ULL || cnt != 8) abort ();
|
||||
if (f13 (-7U, 0) != -7U || cnt != 9) abort ();
|
||||
if (f13 (-7U, 6) != -1U || cnt != 10) abort ();
|
||||
if (f13 (-7U, 7) != 0U || cnt != 10) abort ();
|
||||
if (f13 (-7U, 8) != 1U || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 0) != -9UL || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 8) != -1UL || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 9) != 0UL || cnt != 11) abort ();
|
||||
if (f14 (-9UL, 10) != 1UL || cnt != 12) abort ();
|
||||
if (f15 (-15, 0) != (unsigned short) -15 || cnt != 13) abort ();
|
||||
if (f15 (-15, 14) != (unsigned short) -1 || cnt != 14) abort ();
|
||||
if (f15 (-15, 15) != 0 || cnt != 14) abort ();
|
||||
if (f15 (-15, 16) != 1 || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 0) != -9132ULL || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 9131) != -1ULL || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 9132) != 0 || cnt != 15) abort ();
|
||||
if (f16 (-9132ULL, 9133) != 1ULL || cnt != 16) abort ();
|
||||
return 0;
|
||||
}
|
||||
112
gcc/testsuite/gcc.dg/pr67089-4.c
Normal file
112
gcc/testsuite/gcc.dg/pr67089-4.c
Normal file
@ -0,0 +1,112 @@
|
||||
/* PR target/67089 */
|
||||
/* { dg-do run } */
|
||||
/* { dg-options "-O2" } */
|
||||
|
||||
extern void abort (void);
|
||||
|
||||
int cnt, d;
|
||||
|
||||
__attribute__((noinline, noclone))
|
||||
void foo (int x)
|
||||
{
|
||||
asm volatile ("" : "+m" (d) : "g" (x) : "memory");
|
||||
cnt++;
|
||||
}
|
||||
|
||||
#define T(n, type, op, cond) \
|
||||
__attribute__((noinline, noclone)) \
|
||||
type \
|
||||
f##n (type x, type y) \
|
||||
{ \
|
||||
type r = op; \
|
||||
cond; \
|
||||
return r; \
|
||||
}
|
||||
|
||||
T (1, unsigned int, x + y, if (r > y) foo (0))
|
||||
T (2, unsigned long, x + y, if (r <= y) foo (0))
|
||||
T (3, unsigned short, x + y, if (y < r) foo (r))
|
||||
T (4, unsigned long long, x + y, if (y >= r) foo (0))
|
||||
T (5, unsigned int, x + y, if (r >= y) foo (0))
|
||||
T (6, unsigned long, x + y, if (r < y) foo (0))
|
||||
T (7, unsigned short, x + y, if (y <= r) foo (r))
|
||||
T (8, unsigned long long, x + y, if (d || y > r) foo (0))
|
||||
T (9, unsigned int, x + y, if (d || r > y) foo (0))
|
||||
T (10, unsigned long, x + y, if (d || r <= y) foo (0))
|
||||
T (11, unsigned char, x + y, if (d || y < r) foo (0))
|
||||
T (12, unsigned long long, x + y, if (d || y >= r) foo (0))
|
||||
T (13, unsigned int, x + y, if (d || r >= y) foo (0))
|
||||
T (14, unsigned long, x + y, if (d || r < y) foo (0))
|
||||
T (15, unsigned short, x + y, if (d || y <= r) foo (0))
|
||||
T (16, unsigned long long, x + y, if (d || y > r) foo (0))
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
if (f1 (-7U, 0) != -7U || cnt != 1) abort ();
|
||||
if (f1 (-7U, 6) != -1U || cnt != 2) abort ();
|
||||
if (f1 (-7U, 7) != 0U || cnt != 2) abort ();
|
||||
if (f1 (-7U, 8) != 1U || cnt != 2) abort ();
|
||||
if (f2 (-9UL, 0) != -9UL || cnt != 2) abort ();
|
||||
if (f2 (-9UL, 8) != -1UL || cnt != 2) abort ();
|
||||
if (f2 (-9UL, 9) != 0UL || cnt != 3) abort ();
|
||||
if (f2 (-9UL, 10) != 1UL || cnt != 4) abort ();
|
||||
if (f3 (-15, 0) != (unsigned short) -15 || cnt != 5) abort ();
|
||||
if (f3 (-15, 14) != (unsigned short) -1 || cnt != 6) abort ();
|
||||
if (f3 (-15, 15) != 0 || cnt != 6) abort ();
|
||||
if (f3 (-15, 16) != 1 || cnt != 6) abort ();
|
||||
if (f4 (-9132ULL, 0) != -9132ULL || cnt != 6) abort ();
|
||||
if (f4 (-9132ULL, 9131) != -1ULL || cnt != 6) abort ();
|
||||
if (f4 (-9132ULL, 9132) != 0 || cnt != 7) abort ();
|
||||
if (f4 (-9132ULL, 9133) != 1ULL || cnt != 8) abort ();
|
||||
if (f5 (-7U, 0) != -7U || cnt != 9) abort ();
|
||||
if (f5 (-7U, 6) != -1U || cnt != 10) abort ();
|
||||
if (f5 (-7U, 7) != 0U || cnt != 10) abort ();
|
||||
if (f5 (-7U, 8) != 1U || cnt != 10) abort ();
|
||||
if (f6 (-9UL, 0) != -9UL || cnt != 10) abort ();
|
||||
if (f6 (-9UL, 8) != -1UL || cnt != 10) abort ();
|
||||
if (f6 (-9UL, 9) != 0UL || cnt != 11) abort ();
|
||||
if (f6 (-9UL, 10) != 1UL || cnt != 12) abort ();
|
||||
if (f7 (-15, 0) != (unsigned short) -15 || cnt != 13) abort ();
|
||||
if (f7 (-15, 14) != (unsigned short) -1 || cnt != 14) abort ();
|
||||
if (f7 (-15, 15) != 0 || cnt != 14) abort ();
|
||||
if (f7 (-15, 16) != 1 || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 0) != -9132ULL || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 9131) != -1ULL || cnt != 14) abort ();
|
||||
if (f8 (-9132ULL, 9132) != 0 || cnt != 15) abort ();
|
||||
if (f8 (-9132ULL, 9133) != 1ULL || cnt != 16) abort ();
|
||||
cnt = 0;
|
||||
if (f9 (-7U, 0) != -7U || cnt != 1) abort ();
|
||||
if (f9 (-7U, 6) != -1U || cnt != 2) abort ();
|
||||
if (f9 (-7U, 7) != 0U || cnt != 2) abort ();
|
||||
if (f9 (-7U, 8) != 1U || cnt != 2) abort ();
|
||||
if (f10 (-9UL, 0) != -9UL || cnt != 2) abort ();
|
||||
if (f10 (-9UL, 8) != -1UL || cnt != 2) abort ();
|
||||
if (f10 (-9UL, 9) != 0UL || cnt != 3) abort ();
|
||||
if (f10 (-9UL, 10) != 1UL || cnt != 4) abort ();
|
||||
if (f11 (-15, 0) != (unsigned char) -15 || cnt != 5) abort ();
|
||||
if (f11 (-15, 14) != (unsigned char) -1 || cnt != 6) abort ();
|
||||
if (f11 (-15, 15) != 0 || cnt != 6) abort ();
|
||||
if (f11 (-15, 16) != 1 || cnt != 6) abort ();
|
||||
if (f12 (-9132ULL, 0) != -9132ULL || cnt != 6) abort ();
|
||||
if (f12 (-9132ULL, 9131) != -1ULL || cnt != 6) abort ();
|
||||
if (f12 (-9132ULL, 9132) != 0 || cnt != 7) abort ();
|
||||
if (f12 (-9132ULL, 9133) != 1ULL || cnt != 8) abort ();
|
||||
if (f13 (-7U, 0) != -7U || cnt != 9) abort ();
|
||||
if (f13 (-7U, 6) != -1U || cnt != 10) abort ();
|
||||
if (f13 (-7U, 7) != 0U || cnt != 10) abort ();
|
||||
if (f13 (-7U, 8) != 1U || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 0) != -9UL || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 8) != -1UL || cnt != 10) abort ();
|
||||
if (f14 (-9UL, 9) != 0UL || cnt != 11) abort ();
|
||||
if (f14 (-9UL, 10) != 1UL || cnt != 12) abort ();
|
||||
if (f15 (-15, 0) != (unsigned short) -15 || cnt != 13) abort ();
|
||||
if (f15 (-15, 14) != (unsigned short) -1 || cnt != 14) abort ();
|
||||
if (f15 (-15, 15) != 0 || cnt != 14) abort ();
|
||||
if (f15 (-15, 16) != 1 || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 0) != -9132ULL || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 9131) != -1ULL || cnt != 14) abort ();
|
||||
if (f16 (-9132ULL, 9132) != 0 || cnt != 15) abort ();
|
||||
if (f16 (-9132ULL, 9133) != 1ULL || cnt != 16) abort ();
|
||||
return 0;
|
||||
}
|
||||
82
gcc/testsuite/gcc.dg/pr67089-5.c
Normal file
82
gcc/testsuite/gcc.dg/pr67089-5.c
Normal file
@ -0,0 +1,82 @@
|
||||
/* PR target/67089 */
|
||||
/* { dg-do run } */
|
||||
/* { dg-options "-O2 -ftree-loop-if-convert" } */
|
||||
|
||||
extern void abort (void);
|
||||
|
||||
int cnt;
|
||||
unsigned int a[16], b[16], c[16];
|
||||
|
||||
__attribute__((noinline, noclone))
|
||||
void foo (int x)
|
||||
{
|
||||
asm volatile ("" : : "g" (x) : "memory");
|
||||
cnt++;
|
||||
}
|
||||
|
||||
__attribute__((noinline, noclone)) void
|
||||
f0 (unsigned int x)
|
||||
{
|
||||
for (int i = 0; i < 16; i++)
|
||||
{
|
||||
unsigned int r = x - a[i];
|
||||
b[i] = r;
|
||||
c[i] = r > x ? 7 : x;
|
||||
}
|
||||
}
|
||||
|
||||
#define T(n, type, op, cond) \
|
||||
__attribute__((noinline, noclone)) \
|
||||
type \
|
||||
f##n (type x) \
|
||||
{ \
|
||||
type r = op; \
|
||||
cond; \
|
||||
return r; \
|
||||
}
|
||||
|
||||
T (1, unsigned int, x - 2U, if (r > x) foo (0))
|
||||
T (2, unsigned long, x - 2U, if (r <= x) foo (0))
|
||||
T (3, unsigned short, 2U - x, if (r > 2U) foo (0))
|
||||
T (4, unsigned char, 2U - x, if (r <= 2U) foo (0))
|
||||
T (5, unsigned int, x + -2U, if (r > x) foo (0))
|
||||
T (6, unsigned long, x + -2UL, if (r <= x) foo (0))
|
||||
T (7, unsigned short, (unsigned short) -2 + x, if (r > (unsigned short) -2) foo (0))
|
||||
T (8, unsigned char, (unsigned char) -2 + x, if (r <= (unsigned char) -2) foo (0))
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < 16; i++)
|
||||
a[i] = i - 7;
|
||||
f0 (5);
|
||||
for (i = 0; i < 16; i++)
|
||||
if (b[i] != 12U - i || c[i] != 7 - 2 * (i >= 7 && i < 13))
|
||||
abort ();
|
||||
if (f1 (3) != 1 || cnt != 0) abort ();
|
||||
if (f1 (2) != 0 || cnt != 0) abort ();
|
||||
if (f1 (1) != -1U || cnt != 1) abort ();
|
||||
if (f2 (3) != 1 || cnt != 2) abort ();
|
||||
if (f2 (2) != 0 || cnt != 3) abort ();
|
||||
if (f2 (1) != -1UL || cnt != 3) abort ();
|
||||
if (f3 (3) != (unsigned short) -1 || cnt != 4) abort ();
|
||||
if (f3 (2) != 0 || cnt != 4) abort ();
|
||||
if (f3 (1) != 1 || cnt != 4) abort ();
|
||||
if (f4 (3) != (unsigned char) -1 || cnt != 4) abort ();
|
||||
if (f4 (2) != 0 || cnt != 5) abort ();
|
||||
if (f4 (1) != 1 || cnt != 6) abort ();
|
||||
if (f5 (3) != 1 || cnt != 6) abort ();
|
||||
if (f5 (2) != 0 || cnt != 6) abort ();
|
||||
if (f5 (1) != -1U || cnt != 7) abort ();
|
||||
if (f6 (3) != 1 || cnt != 8) abort ();
|
||||
if (f6 (2) != 0 || cnt != 9) abort ();
|
||||
if (f6 (1) != -1UL || cnt != 9) abort ();
|
||||
if (f7 (3) != 1 || cnt != 9) abort ();
|
||||
if (f7 (2) != 0 || cnt != 9) abort ();
|
||||
if (f7 (1) != (unsigned short) -1 || cnt != 10) abort ();
|
||||
if (f8 (3) != 1 || cnt != 11) abort ();
|
||||
if (f8 (2) != 0 || cnt != 12) abort ();
|
||||
if (f8 (1) != (unsigned char) -1 || cnt != 12) abort ();
|
||||
return 0;
|
||||
}
|
||||
62
gcc/testsuite/gcc.dg/pr67089-6.c
Normal file
62
gcc/testsuite/gcc.dg/pr67089-6.c
Normal file
@ -0,0 +1,62 @@
|
||||
/* PR target/67089 */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-O2 -ftree-loop-if-convert -fdump-tree-widening_mul" } */
|
||||
|
||||
extern void abort (void);
|
||||
|
||||
int cnt;
|
||||
unsigned int a[16], b[16], c[16], d;
|
||||
void foo (int x);
|
||||
|
||||
__attribute__((noinline, noclone)) void
|
||||
f0 (unsigned int x)
|
||||
{
|
||||
for (int i = 0; i < 16; i++)
|
||||
{
|
||||
unsigned int r = x - a[i];
|
||||
b[i] = r;
|
||||
c[i] = r > x ? 7 : x;
|
||||
}
|
||||
}
|
||||
|
||||
#define T(n, type, op, cond) \
|
||||
__attribute__((noinline, noclone)) \
|
||||
type \
|
||||
f##n (type x, type y) \
|
||||
{ \
|
||||
type r = op; \
|
||||
cond; \
|
||||
return r; \
|
||||
}
|
||||
|
||||
T (1, unsigned int, x - y, if (r > x) foo (0))
|
||||
T (2, unsigned long, x - y, if (r <= x) foo (0))
|
||||
T (3, unsigned short, x - y, if (x < r) foo (r))
|
||||
T (4, unsigned long long, x - y, if (x >= r) foo (0))
|
||||
T (5, unsigned int, x - y, if (d || r > x) foo (0))
|
||||
T (6, unsigned long, x - y, if (d || r <= x) foo (0))
|
||||
T (7, unsigned char, x - y, if (d || x < r) foo (0))
|
||||
T (8, unsigned long long, x - y, if (d || x >= r) foo (0))
|
||||
T (9, unsigned int, x + y, if (r >= x) foo (0))
|
||||
T (10, unsigned long, x + y, if (r < x) foo (0))
|
||||
T (11, unsigned short, x + y, if (x <= r) foo (r))
|
||||
T (12, unsigned long long, x + y, if (d || x > r) foo (0))
|
||||
T (13, unsigned int, x + y, if (d || r >= x) foo (0))
|
||||
T (14, unsigned long, x + y, if (d || r < x) foo (0))
|
||||
T (15, unsigned short, x + y, if (d || x <= r) foo (0))
|
||||
T (16, unsigned long long, x + y, if (d || x > r) foo (0))
|
||||
T (17, unsigned int, x + y, if (r >= y) foo (0))
|
||||
T (18, unsigned long, x + y, if (r < y) foo (0))
|
||||
T (19, unsigned short, x + y, if (y <= r) foo (r))
|
||||
T (20, unsigned long long, x + y, if (d || y > r) foo (0))
|
||||
T (21, unsigned int, x + y, if (d || r >= y) foo (0))
|
||||
T (22, unsigned long, x + y, if (d || r < y) foo (0))
|
||||
T (23, unsigned short, x + y, if (d || y <= r) foo (0))
|
||||
T (24, unsigned long long, x + y, if (d || y > r) foo (0))
|
||||
T (25, unsigned short, 2U - x, if (r > 2U) foo (0))
|
||||
T (26, unsigned char, 2U - x, if (r <= 2U) foo (0))
|
||||
|
||||
/* { dg-final { scan-tree-dump-times "ADD_OVERFLOW" 16 "widening_mul" { target { { i?86-*-* x86_64-*-* } && { ! ia32 } } } } } */
|
||||
/* { dg-final { scan-tree-dump-times "SUB_OVERFLOW" 11 "widening_mul" { target { { i?86-*-* x86_64-*-* } && { ! ia32 } } } } } */
|
||||
/* { dg-final { scan-tree-dump-times "ADD_OVERFLOW" 12 "widening_mul" { target { { i?86-*-* x86_64-*-* } && ia32 } } } } */
|
||||
/* { dg-final { scan-tree-dump-times "SUB_OVERFLOW" 9 "widening_mul" { target { { i?86-*-* x86_64-*-* } && ia32 } } } } */
|
||||
62
gcc/testsuite/gcc.dg/pr67089-7.c
Normal file
62
gcc/testsuite/gcc.dg/pr67089-7.c
Normal file
@ -0,0 +1,62 @@
|
||||
/* PR target/67089 */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-O2 -ftree-loop-if-convert -fdump-tree-widening_mul" } */
|
||||
|
||||
extern void abort (void);
|
||||
|
||||
int cnt, d;
|
||||
void foo (int x);
|
||||
|
||||
#define T(n, type, op, cond) \
|
||||
__attribute__((noinline, noclone)) \
|
||||
type \
|
||||
f##n (type x, type y) \
|
||||
{ \
|
||||
type r = op; \
|
||||
cond; \
|
||||
return r; \
|
||||
}
|
||||
|
||||
T (1, unsigned int, x - y, if (r >= x) foo (0))
|
||||
T (2, unsigned long, x - y, if (r < x) foo (0))
|
||||
T (3, unsigned short, x - y, if (x <= r) foo (r))
|
||||
T (4, unsigned long long, x - y, if (d || x > r) foo (0))
|
||||
T (5, unsigned int, x - y, if (d || r >= x) foo (0))
|
||||
T (6, unsigned long, x - y, if (d || r < x) foo (0))
|
||||
T (7, unsigned short, x - y, if (d || x <= r) foo (0))
|
||||
T (8, unsigned long long, x - y, if (d || x > r) foo (0))
|
||||
T (9, unsigned int, x - y, if (r > y) foo (0))
|
||||
T (10, unsigned long, x - y, if (r <= y) foo (0))
|
||||
T (11, unsigned short, x - y, if (y < r) foo (r))
|
||||
T (12, unsigned long long, x - y, if (y >= r) foo (0))
|
||||
T (13, unsigned int, x - y, if (r >= y) foo (0))
|
||||
T (14, unsigned long, x - y, if (r < y) foo (0))
|
||||
T (15, unsigned short, x - y, if (y <= r) foo (r))
|
||||
T (16, unsigned long long, x - y, if (d || y > r) foo (0))
|
||||
T (17, unsigned int, x - y, if (d || r > y) foo (0))
|
||||
T (18, unsigned long, x - y, if (d || r <= y) foo (0))
|
||||
T (19, unsigned char, x - y, if (d || y < r) foo (0))
|
||||
T (20, unsigned long long, x - y, if (d || y >= r) foo (0))
|
||||
T (21, unsigned int, x - y, if (d || r >= y) foo (0))
|
||||
T (22, unsigned long, x - y, if (d || r < y) foo (0))
|
||||
T (23, unsigned short, x - y, if (d || y <= r) foo (0))
|
||||
T (24, unsigned long long, x - y, if (d || y > r) foo (0))
|
||||
T (25, unsigned int, x + y, if (r > x) foo (0))
|
||||
T (26, unsigned long, x + y, if (r <= x) foo (0))
|
||||
T (27, unsigned short, x + y, if (x < r) foo (r))
|
||||
T (28, unsigned long long, x + y, if (x >= r) foo (0))
|
||||
T (29, unsigned int, x + y, if (d || r > x) foo (0))
|
||||
T (30, unsigned long, x + y, if (d || r <= x) foo (0))
|
||||
T (31, unsigned char, x + y, if (d || x < r) foo (0))
|
||||
T (32, unsigned long long, x + y, if (d || x >= r) foo (0))
|
||||
T (33, unsigned int, x + y, if (r > y) foo (0))
|
||||
T (34, unsigned long, x + y, if (r <= y) foo (0))
|
||||
T (35, unsigned short, x + y, if (y < r) foo (r))
|
||||
T (36, unsigned long long, x + y, if (y >= r) foo (0))
|
||||
T (37, unsigned int, x + y, if (d || r > y) foo (0))
|
||||
T (38, unsigned long, x + y, if (d || r <= y) foo (0))
|
||||
T (39, unsigned char, x + y, if (d || y < r) foo (0))
|
||||
T (40, unsigned long long, x + y, if (d || y >= r) foo (0))
|
||||
|
||||
/* { dg-final { scan-tree-dump-not "ADD_OVERFLOW" "widening_mul" } } */
|
||||
/* { dg-final { scan-tree-dump-not "SUB_OVERFLOW" "widening_mul" } } */
|
||||
@ -3491,6 +3491,189 @@ convert_mult_to_fma (gimple *mul_stmt, tree op1, tree op2)
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/* Helper function of match_uaddsub_overflow. Return 1
|
||||
if USE_STMT is unsigned overflow check ovf != 0 for
|
||||
STMT, -1 if USE_STMT is unsigned overflow check ovf == 0
|
||||
and 0 otherwise. */
|
||||
|
||||
static int
|
||||
uaddsub_overflow_check_p (gimple *stmt, gimple *use_stmt)
|
||||
{
|
||||
enum tree_code ccode = ERROR_MARK;
|
||||
tree crhs1 = NULL_TREE, crhs2 = NULL_TREE;
|
||||
if (gimple_code (use_stmt) == GIMPLE_COND)
|
||||
{
|
||||
ccode = gimple_cond_code (use_stmt);
|
||||
crhs1 = gimple_cond_lhs (use_stmt);
|
||||
crhs2 = gimple_cond_rhs (use_stmt);
|
||||
}
|
||||
else if (is_gimple_assign (use_stmt))
|
||||
{
|
||||
if (gimple_assign_rhs_class (use_stmt) == GIMPLE_BINARY_RHS)
|
||||
{
|
||||
ccode = gimple_assign_rhs_code (use_stmt);
|
||||
crhs1 = gimple_assign_rhs1 (use_stmt);
|
||||
crhs2 = gimple_assign_rhs2 (use_stmt);
|
||||
}
|
||||
else if (gimple_assign_rhs_code (use_stmt) == COND_EXPR)
|
||||
{
|
||||
tree cond = gimple_assign_rhs1 (use_stmt);
|
||||
if (COMPARISON_CLASS_P (cond))
|
||||
{
|
||||
ccode = TREE_CODE (cond);
|
||||
crhs1 = TREE_OPERAND (cond, 0);
|
||||
crhs2 = TREE_OPERAND (cond, 1);
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
|
||||
if (TREE_CODE_CLASS (ccode) != tcc_comparison)
|
||||
return 0;
|
||||
|
||||
enum tree_code code = gimple_assign_rhs_code (stmt);
|
||||
tree lhs = gimple_assign_lhs (stmt);
|
||||
tree rhs1 = gimple_assign_rhs1 (stmt);
|
||||
tree rhs2 = gimple_assign_rhs2 (stmt);
|
||||
|
||||
switch (ccode)
|
||||
{
|
||||
case GT_EXPR:
|
||||
case LE_EXPR:
|
||||
/* r = a - b; r > a or r <= a
|
||||
r = a + b; a > r or a <= r or b > r or b <= r. */
|
||||
if ((code == MINUS_EXPR && crhs1 == lhs && crhs2 == rhs1)
|
||||
|| (code == PLUS_EXPR && (crhs1 == rhs1 || crhs1 == rhs2)
|
||||
&& crhs2 == lhs))
|
||||
return ccode == GT_EXPR ? 1 : -1;
|
||||
break;
|
||||
case LT_EXPR:
|
||||
case GE_EXPR:
|
||||
/* r = a - b; a < r or a >= r
|
||||
r = a + b; r < a or r >= a or r < b or r >= b. */
|
||||
if ((code == MINUS_EXPR && crhs1 == rhs1 && crhs2 == lhs)
|
||||
|| (code == PLUS_EXPR && crhs1 == lhs
|
||||
&& (crhs2 == rhs1 || crhs2 == rhs2)))
|
||||
return ccode == LT_EXPR ? 1 : -1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Recognize for unsigned x
|
||||
x = y - z;
|
||||
if (x > y)
|
||||
where there are other uses of x and replace it with
|
||||
_7 = SUB_OVERFLOW (y, z);
|
||||
x = REALPART_EXPR <_7>;
|
||||
_8 = IMAGPART_EXPR <_7>;
|
||||
if (_8)
|
||||
and similarly for addition. */
|
||||
|
||||
static bool
|
||||
match_uaddsub_overflow (gimple_stmt_iterator *gsi, gimple *stmt,
|
||||
enum tree_code code)
|
||||
{
|
||||
tree lhs = gimple_assign_lhs (stmt);
|
||||
tree type = TREE_TYPE (lhs);
|
||||
use_operand_p use_p;
|
||||
imm_use_iterator iter;
|
||||
bool use_seen = false;
|
||||
bool ovf_use_seen = false;
|
||||
gimple *use_stmt;
|
||||
|
||||
gcc_checking_assert (code == PLUS_EXPR || code == MINUS_EXPR);
|
||||
if (!INTEGRAL_TYPE_P (type)
|
||||
|| !TYPE_UNSIGNED (type)
|
||||
|| has_zero_uses (lhs)
|
||||
|| has_single_use (lhs)
|
||||
|| optab_handler (code == PLUS_EXPR ? uaddv4_optab : usubv4_optab,
|
||||
TYPE_MODE (type)) == CODE_FOR_nothing)
|
||||
return false;
|
||||
|
||||
FOR_EACH_IMM_USE_FAST (use_p, iter, lhs)
|
||||
{
|
||||
use_stmt = USE_STMT (use_p);
|
||||
if (is_gimple_debug (use_stmt))
|
||||
continue;
|
||||
|
||||
if (uaddsub_overflow_check_p (stmt, use_stmt))
|
||||
ovf_use_seen = true;
|
||||
else
|
||||
use_seen = true;
|
||||
if (ovf_use_seen && use_seen)
|
||||
break;
|
||||
}
|
||||
|
||||
if (!ovf_use_seen || !use_seen)
|
||||
return false;
|
||||
|
||||
tree ctype = build_complex_type (type);
|
||||
tree rhs1 = gimple_assign_rhs1 (stmt);
|
||||
tree rhs2 = gimple_assign_rhs2 (stmt);
|
||||
gcall *g = gimple_build_call_internal (code == PLUS_EXPR
|
||||
? IFN_ADD_OVERFLOW : IFN_SUB_OVERFLOW,
|
||||
2, rhs1, rhs2);
|
||||
tree ctmp = make_ssa_name (ctype);
|
||||
gimple_call_set_lhs (g, ctmp);
|
||||
gsi_insert_before (gsi, g, GSI_SAME_STMT);
|
||||
gassign *g2 = gimple_build_assign (lhs, REALPART_EXPR,
|
||||
build1 (REALPART_EXPR, type, ctmp));
|
||||
gsi_replace (gsi, g2, true);
|
||||
tree ovf = make_ssa_name (type);
|
||||
g2 = gimple_build_assign (ovf, IMAGPART_EXPR,
|
||||
build1 (IMAGPART_EXPR, type, ctmp));
|
||||
gsi_insert_after (gsi, g2, GSI_NEW_STMT);
|
||||
|
||||
FOR_EACH_IMM_USE_STMT (use_stmt, iter, lhs)
|
||||
{
|
||||
if (is_gimple_debug (use_stmt))
|
||||
continue;
|
||||
|
||||
int ovf_use = uaddsub_overflow_check_p (stmt, use_stmt);
|
||||
if (ovf_use == 0)
|
||||
continue;
|
||||
if (gimple_code (use_stmt) == GIMPLE_COND)
|
||||
{
|
||||
gcond *cond_stmt = as_a <gcond *> (use_stmt);
|
||||
gimple_cond_set_lhs (cond_stmt, ovf);
|
||||
gimple_cond_set_rhs (cond_stmt, build_int_cst (type, 0));
|
||||
gimple_cond_set_code (cond_stmt, ovf_use == 1 ? NE_EXPR : EQ_EXPR);
|
||||
}
|
||||
else
|
||||
{
|
||||
gcc_checking_assert (is_gimple_assign (use_stmt));
|
||||
if (gimple_assign_rhs_class (use_stmt) == GIMPLE_BINARY_RHS)
|
||||
{
|
||||
gimple_assign_set_rhs1 (use_stmt, ovf);
|
||||
gimple_assign_set_rhs2 (use_stmt, build_int_cst (type, 0));
|
||||
gimple_assign_set_rhs_code (use_stmt,
|
||||
ovf_use == 1 ? NE_EXPR : EQ_EXPR);
|
||||
}
|
||||
else
|
||||
{
|
||||
gcc_checking_assert (gimple_assign_rhs_code (use_stmt)
|
||||
== COND_EXPR);
|
||||
tree cond = build2 (ovf_use == 1 ? NE_EXPR : EQ_EXPR,
|
||||
boolean_type_node, ovf,
|
||||
build_int_cst (type, 0));
|
||||
gimple_assign_set_rhs1 (use_stmt, cond);
|
||||
}
|
||||
}
|
||||
update_stmt (use_stmt);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/* Find integer multiplications where the operands are extended from
|
||||
smaller types, and replace the MULT_EXPR with a WIDEN_MULT_EXPR
|
||||
where appropriate. */
|
||||
@ -3563,7 +3746,8 @@ pass_optimize_widening_mul::execute (function *fun)
|
||||
|
||||
case PLUS_EXPR:
|
||||
case MINUS_EXPR:
|
||||
convert_plusminus_to_widen (&gsi, stmt, code);
|
||||
if (!convert_plusminus_to_widen (&gsi, stmt, code))
|
||||
match_uaddsub_overflow (&gsi, stmt, code);
|
||||
break;
|
||||
|
||||
default:;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user