| commit | 1fc851cde8352f4f3c1062ee46593e66a6284c60 | |
| author | Nikodemus Siivola <nikodemus@random-state.net> | |
| Sat, 19 Jul 2008 16:07:52 +0000 (19 16:07 +0000) | ||
| committer | Nikodemus Siivola <nikodemus@random-state.net> | |
| Sat, 19 Jul 2008 16:07:52 +0000 (19 16:07 +0000) | ||
| tree | 0e58a7455fe56d6e838a1984c9da345bfde4037d | treesnapshot (tar.gz zip) |
| parent | ca094620d68447584326dfaac532e7b2f1014d12 | commitdiff |
1.0.18.25: tweak stack allocation on x86 and x86-64
* Use MAYBE-PSEUDO-ATOMIC in the LIST-OR-LIST* VOP: stack allocation
doesn't need PA.
* When using STACK-ALLOCATE-P parameter with ALLOCATION, also pass in
the lowtag. This allows us to generate
LEA REG [STACK_REG+LOWTAG]
instead of
MOV REG STACK_REG
LEA REG [REG+LOWTAG]
for stack allocation & tagging.
On x86-64 can use the same trick in the inline path for heap
allocation as well.
* Use MAYBE-PSEUDO-ATOMIC in the LIST-OR-LIST* VOP: stack allocation
doesn't need PA.
* When using STACK-ALLOCATE-P parameter with ALLOCATION, also pass in
the lowtag. This allows us to generate
LEA REG [STACK_REG+LOWTAG]
instead of
MOV REG STACK_REG
LEA REG [REG+LOWTAG]
for stack allocation & tagging.
On x86-64 can use the same trick in the inline path for heap
allocation as well.