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re PR middle-end/79396 (ICE (verify_flow_info failed) with -fnon-call-exceptions -O2 -march=haswell)

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PR middle-end/79396
	* tree-eh.c (operation_could_trap_p, stmt_could_throw_1_p): Handle
	FMA_EXPR like tcc_binary or tcc_unary.

	* g++.dg/opt/pr79396.C: New test.

From-SVN: r245735
This commit is contained in:
Jakub Jelinek 2017-02-25 11:17:31 +01:00 • committed by Jakub Jelinek
parent 9d975cb6a6
commit 98561a9b58
4 changed files with 26 additions and 2 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2017-02-25 Jakub Jelinek <jakub@redhat.com>
PR middle-end/79396
* tree-eh.c (operation_could_trap_p, stmt_could_throw_1_p): Handle
FMA_EXPR like tcc_binary or tcc_unary.
* tree-ssa-loop-niter.c (number_of_iterations_exit): Simplify warning.
PR debug/77589

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2017-02-25 Jakub Jelinek <jakub@redhat.com>
PR middle-end/79396
* g++.dg/opt/pr79396.C: New test.
2017-02-25 Dominique d'Humieres <dominiq@lps.ens.fr>
PR fortran/79597

13
gcc/testsuite/g++.dg/opt/pr79396.C Normal file
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@ -0,0 +1,13 @@
// PR middle-end/79396
// { dg-do compile }
// { dg-options "-fnon-call-exceptions -O2" }
// { dg-additional-options "-mfma" { target i?86-*-* x86_64-*-* } }
struct A { A (); ~A (); };
float
foo (float x)
{
A a;
return __builtin_pow (x, 2) + 2;
}

6
gcc/tree-eh.c
View file

@ -2513,7 +2513,8 @@ operation_could_trap_p (enum tree_code op, bool fp_operation, bool honor_trapv,
if (TREE_CODE_CLASS (op) != tcc_comparison
&& TREE_CODE_CLASS (op) != tcc_unary
&& TREE_CODE_CLASS (op) != tcc_binary)
&& TREE_CODE_CLASS (op) != tcc_binary
&& op != FMA_EXPR)
return false;
return operation_could_trap_helper_p (op, fp_operation, honor_trapv,
@ -2738,7 +2739,8 @@ stmt_could_throw_1_p (gimple *stmt)
if (TREE_CODE_CLASS (code) == tcc_comparison
|| TREE_CODE_CLASS (code) == tcc_unary
|| TREE_CODE_CLASS (code) == tcc_binary)
|| TREE_CODE_CLASS (code) == tcc_binary
|| code == FMA_EXPR)
{
if (is_gimple_assign (stmt)
&& TREE_CODE_CLASS (code) == tcc_comparison)