diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-25 10:06:56 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-25 10:06:56 +0000 |
| commit | e00568b077f05a724bb958bf8eac53e64cacb2d0 (patch) | |
| tree | d00599ecb1181960d736d99054a1d52f92fcabf4 /gcc | |
| parent | 58a7103e092376aefc0f107d175cf357fb6e85ea (diff) | |
| download | ppe42-gcc-e00568b077f05a724bb958bf8eac53e64cacb2d0.tar.gz ppe42-gcc-e00568b077f05a724bb958bf8eac53e64cacb2d0.zip | |
* i386.h (PREFERRED_STACK_BOUNDARY): Set to 128.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25973 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 7 |
2 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cc4577a1bdb..e16fb40fb2c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Thu Mar 25 10:05:56 1999 Richard Henderson <rth@cygnus.com> + + * i386.h (PREFERRED_STACK_BOUNDARY): Set to 128. + 1999-03-25 Philip Blundell <pb@nexus.co.uk> Based on patch from Jim Studt <jim@federated.com>: diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 417627f2afd..4f4d55373a7 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -410,9 +410,10 @@ extern int ix86_arch; /* Boundary (in *bits*) on which stack pointer should be aligned. */ #define STACK_BOUNDARY 32 -/* We want to keep the stack aligned to 64bits when possible. But the - compiler can not rely on the stack having this alignment.*/ -#define PREFERRED_STACK_BOUNDARY 64 +/* We want to keep the stack aligned to 128 bits when possible, for the + benefit of doubles and SSE __m128. But the compiler can not rely on + the stack having this alignment.*/ +#define PREFERRED_STACK_BOUNDARY 128 /* Allocation boundary (in *bits*) for the code of a function. For i486, we get better performance by aligning to a cache |
