diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0149-PR-target-48678.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0149-PR-target-48678.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0149-PR-target-48678.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0149-PR-target-48678.patch new file mode 100644 index 0000000..da3a872 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0149-PR-target-48678.patch @@ -0,0 +1,49 @@ +From ac255441a3e973a974d1ab70d00a9b7269103214 Mon Sep 17 00:00:00 2001 +From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Tue, 19 Apr 2011 16:49:19 +0000 +Subject: [PATCH 149/200] PR target/48678 + * config/i386/i386.md (movstrict<mode>): FAIL if operands[0] + is a SUBREG with non-MODE_INT mode inside of it. + + * gcc.target/i386/pr48678.c: New test. + + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@172723 138bc75d-0d04-0410-961f-82ee72b054a4 + +index b50a52a..c50002e 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -2408,6 +2408,9 @@ + { + if (TARGET_PARTIAL_REG_STALL && optimize_function_for_speed_p (cfun)) + FAIL; ++ if (GET_CODE (operands[0]) == SUBREG ++ && GET_MODE_CLASS (GET_MODE (SUBREG_REG (operands[0]))) != MODE_INT) ++ FAIL; + /* Don't generate memory->memory moves, go through a register */ + if (MEM_P (operands[0]) && MEM_P (operands[1])) + operands[1] = force_reg (<MODE>mode, operands[1]); +new file mode 100644 +index 0000000..6f6727f +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/pr48678.c +@@ -0,0 +1,16 @@ ++/* PR target/48678 */ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -msse2" } */ ++ ++#include <emmintrin.h> ++ ++typedef short T __attribute__((may_alias)); ++struct S { __m128i d; }; ++ ++__m128i ++foo (short *x, struct S *y, __m128i *z) ++{ ++ struct S s = *y; ++ ((T *) &s.d)[0] = *x; ++ return _mm_cmpeq_epi16 (s.d, *z); ++} +-- +1.7.0.4 + |
