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| author | Eric Botcazou <ebotcazou@adacore.com> | 2016-02-28 14:36:41 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2016-02-28 14:36:41 +0000 |
| commit | 33505bcf10452fe4bdb96c573805251753f06dc5 (patch) | |
| tree | 8f0bc9888d13dfe7476a3e4349c83c41aa8c7598 /gcc | |
| parent | 524bfb1973cc043d0afb4a5e86c16d8309f0801a (diff) | |
| download | gcc-33505bcf10452fe4bdb96c573805251753f06dc5.zip gcc-33505bcf10452fe4bdb96c573805251753f06dc5.tar.gz gcc-33505bcf10452fe4bdb96c573805251753f06dc5.tar.bz2 | |
* config/i386/cygming.h (STACK_REALIGN_DEFAULT): Define.
From-SVN: r233791
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/i386/cygming.h | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/stack-realign-win.c | 35 |
4 files changed, 48 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 85c6301..4db03b6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2016-02-28 Eric Botcazou <ebotcazou@adacore.com> + + * config/i386/cygming.h (STACK_REALIGN_DEFAULT): Define. + 2016-02-27 Jeff Law <law@redhat.com> Revert diff --git a/gcc/config/i386/cygming.h b/gcc/config/i386/cygming.h index 7cd8ac5..9da4733 100644 --- a/gcc/config/i386/cygming.h +++ b/gcc/config/i386/cygming.h @@ -39,6 +39,11 @@ along with GCC; see the file COPYING3. If not see #undef MAX_STACK_ALIGNMENT #define MAX_STACK_ALIGNMENT (TARGET_SEH ? 128 : MAX_OFILE_ALIGNMENT) +/* 32-bit Windows aligns the stack on a 4-byte boundary but SSE instructions + may require 16-byte alignment. */ +#undef STACK_REALIGN_DEFAULT +#define STACK_REALIGN_DEFAULT TARGET_SSE + /* Support hooks for SEH. */ #undef TARGET_ASM_UNWIND_EMIT #define TARGET_ASM_UNWIND_EMIT i386_pe_seh_unwind_emit diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8953173..835ee2b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2016-02-28 Eric Botcazou <ebotcazou@adacore.com> + + * gcc.target/i386/stack-realign-win.c: New test. + 2016-02-28 Harald Anlauf <anlauf@gmx.de> PR fortran/60126 diff --git a/gcc/testsuite/gcc.target/i386/stack-realign-win.c b/gcc/testsuite/gcc.target/i386/stack-realign-win.c new file mode 100644 index 0000000..e27a565 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/stack-realign-win.c @@ -0,0 +1,35 @@ +/* { dg-do compile { target *-*-mingw* *-*-cygwin* } } */ +/* { dg-require-effective-target ia32 } */ +/* { dg-options "-msse -O" } */ + +extern void abort (void); + +typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__)); + +static __m128 +load_m128 (float *e) +{ + return * (__m128 *) e; +} + +typedef union +{ + __m128 x; + float a[4]; +} union128; + +void test (void) +{ + union128 u; + float e[4] __attribute__ ((aligned (16))) + = {2134.3343, 1234.635654, 1.2234, 876.8976}; + int i; + + u.x = load_m128 (e); + + for (i = 0; i < 4; i++) + if (u.a[i] != e[i]) + abort (); +} + +/* { dg-final { scan-assembler "andl\\t\\$-16, %esp" } } */ |