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| author | Chris Lattner <sabre@nondot.org> | 2006-04-17 21:48:13 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-04-17 21:48:13 +0000 |
| commit | f9568d8700d5389799796262cde313bb5c7d588a (patch) | |
| tree | d63e7f6f0a37b1b9f3b4018962565a11fc1536ca /docs/CommandGuide/llvm-prof.pod | |
| parent | d5c654bb0a179cd50c579f29cf10f37eb101cd06 (diff) | |
Don't diddle VRSAVE if no registers need to be added/removed from it. This
allows us to codegen functions as:
_test_rol:
vspltisw v2, -12
vrlw v2, v2, v2
blr
instead of:
_test_rol:
mfvrsave r2, 256
mr r3, r2
mtvrsave r3
vspltisw v2, -12
vrlw v2, v2, v2
mtvrsave r2
blr
Testcase here: CodeGen/PowerPC/vec_vrsave.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27777 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CommandGuide/llvm-prof.pod')
0 files changed, 0 insertions, 0 deletions