93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* PR tree-optimization/86083 - handle non-constant assignments in strlen
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{ dg-do compile }
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{ dg-options "-O2 -Wall -fdump-tree-optimized" } */
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#include "range.h"
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#include "strlenopt.h"
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#define CAT(x, y) x ## y
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#define CONCAT(x, y) CAT (x, y)
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#define FAILNAME(name) CONCAT (call_ ## name ##_on_line_, __LINE__)
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#define FAIL(name) do { \
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extern void FAILNAME (name) (void); \
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FAILNAME (name)(); \
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} while (0)
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/* Macro to emit a call to funcation named
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call_in_true_branch_not_eliminated_on_line_NNN()
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for each call that's expected to be eliminated. The dg-final
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scan-tree-dump-time directive at the bottom of the test verifies
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that no such call appears in output. */
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#define ASSERT_ELIM(expr) \
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if (!(expr)) FAIL (in_true_branch_not_eliminated); else (void)0
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/* Macro to emit a call to a function named
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call_made_in_{true,false}_branch_on_line_NNN()
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for each call that's expected to be retained. The dg-final
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scan-tree-dump-time directive at the bottom of the test verifies
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that the expected number of both kinds of calls appears in output
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(a pair for each line with the invocation of the KEEP() macro. */
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#define ASSERT_KEEP(expr) \
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if (expr) \
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FAIL (made_in_true_branch); \
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else \
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FAIL (made_in_false_branch)
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#define ELIM(init, i, c, res) \
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do { \
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char a[] = init; \
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a[i] = c; \
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ASSERT_ELIM (strlen (a) == res); \
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} while (0)
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#define KEEP(init, i, c, res) \
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do { \
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char a[] = init; \
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a[i] = c; \
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ASSERT_KEEP (strlen (a) == res); \
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} while (0)
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void test_elim_range (char c)
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{
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ELIM ("1", 0, UR (1, 2), 1);
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ELIM ("1", 0, UR (1, 127), 1);
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ELIM ("1", 0, UR ('0', '9'), 1);
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ELIM ("12", 0, UR (1, 127), 2);
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ELIM ("12", 1, UR (1, 127), 2);
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ELIM ("123", 0, UR (1, 9), 3);
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ELIM ("123", 1, UR (10, 99), 3);
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ELIM ("123", 2, UR (100, 127), 3);
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}
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void test_elim_anti_range (const char *s)
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{
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char c = *s++;
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ELIM ("123", 0, c ? c : 'x', 3);
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c = *s++;
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ELIM ("1234", 1, c ? c : 'y', 4);
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c = *s++;
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ELIM ("123", 2, c ? c : 'z', 3);
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}
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#line 1000
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void test_keep (void)
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{
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size_t uchar_max = (unsigned char)-1;
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KEEP ("1", 0, UR (1, uchar_max + 1), 1);
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KEEP ("1\0\3", 1, UR (1, 2), 2);
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}
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/* { dg-final { scan-tree-dump-times "call_in_true_branch_not_eliminated_" 0 "optimized" } }
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{ dg-final { scan-tree-dump-times "call_made_in_true_branch_on_line_1\[0-9\]\[0-9\]\[0-9\]" 2 "optimized" } }
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{ dg-final { scan-tree-dump-times "call_made_in_false_branch_on_line_1\[0-9\]\[0-9\]\[0-9\]" 2 "optimized" } } */
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