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re PR target/84827 (ICE in extract_insn, at recog.c:2311) 

PR target/84827
	* config/i386/i386.md (round<mode>2): For 387 fancy math, disable
	pattern if -ftrapping-math -fno-fp-int-builtin-inexact.

	* gcc.target/i386/pr84827.c: New test.

From-SVN: r258477
This commit is contained in:
Jakub Jelinek 2018-03-13 09:05:58 +01:00 committed by Jakub Jelinek
parent fc31d739fb
commit ee6e130378
4 changed files with 30 additions and 1 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2018-03-13 Jakub Jelinek <jakub@redhat.com>
PR target/84827
* config/i386/i386.md (round<mode>2): For 387 fancy math, disable
pattern if -ftrapping-math -fno-fp-int-builtin-inexact.
PR target/84828
* reg-stack.c (change_stack): Change update_end var from int to
rtx_insn *, if non-NULL don't update just BB_END (current_block), but

3
gcc/config/i386/i386.md
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@ -16311,7 +16311,8 @@
"(TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
&& flag_unsafe_math_optimizations)
&& flag_unsafe_math_optimizations
&& (flag_fp_int_builtin_inexact || !flag_trapping_math))
|| (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH
&& !flag_trapping_math && !flag_rounding_math)"
{

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2018-03-13 Jakub Jelinek <jakub@redhat.com>
PR target/84827
* gcc.target/i386/pr84827.c: New test.
PR target/84828
* g++.dg/ext/pr84828.C: New test.

21
gcc/testsuite/gcc.target/i386/pr84827.c Normal file
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@ -0,0 +1,21 @@
/* PR target/84827 */
/* { dg-do compile } */
/* { dg-options "-Ofast -fno-fp-int-builtin-inexact -ftrapping-math -fno-associative-math -mfpmath=387" } */
double
f1 (double a)
{
return __builtin_round (a);
}
float
f2 (float a)
{
return __builtin_roundf (a);
}
long double
f3 (long double a)
{
return __builtin_roundl (a);
}