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re PR target/85508 (runtime error in config/i386/i386.c) 

PR target/85508
	* config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
	instead of INTVAL when shifting x left.

	* gcc.target/i386/pr85508.c: New test.

From-SVN: r259594
This commit is contained in:
Jakub Jelinek 2018-04-24 15:20:20 +02:00 committed by Jakub Jelinek
parent 062c0a7b2f
commit 1704194ae7
4 changed files with 24 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2018-04-24 Jakub Jelinek <jakub@redhat.com>
PR target/85508
* config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
instead of INTVAL when shifting x left.
2018-04-24 Andreas Krebbel <krebbel@linux.ibm.com>
PR tree-optimization/85478

2
gcc/config/i386/i386.c
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@ -43194,7 +43194,7 @@ ix86_expand_vector_init_one_var (bool mmx_ok, machine_mode mode,
else
{
var = convert_modes (HImode, QImode, var, true);
x = gen_int_mode (INTVAL (x) << 8, HImode);
x = gen_int_mode (UINTVAL (x) << 8, HImode);
}
if (x != const0_rtx)
var = expand_simple_binop (HImode, IOR, var, x, var,

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-04-24 Jakub Jelinek <jakub@redhat.com>
PR target/85508
* gcc.target/i386/pr85508.c: New test.
2018-04-24 Andreas Krebbel <krebbel@linux.ibm.com>
PR tree-optimization/85478

12
gcc/testsuite/gcc.target/i386/pr85508.c Normal file
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@ -0,0 +1,12 @@
/* PR target/85508 */
/* { dg-do compile } */
/* { dg-options "-O2 -msse2" } */
typedef signed char V __attribute__((vector_size (16)));
signed char c;
V
foo (void)
{
return (V) { c, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
}