diff options
| 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 | 6bd68ae81e64f823a293f616fd088b3552c86e30 (patch) | |
| tree | 62f2a0ed2175974cf4962f3401e58c05056f59ac /llvm/lib/CodeGen/SelectionDAG | |
| parent | efe2b3f2fc4af9f0330583567c109b46140b069d (diff) | |
| download | bcm5719-llvm-6bd68ae81e64f823a293f616fd088b3552c86e30.tar.gz bcm5719-llvm-6bd68ae81e64f823a293f616fd088b3552c86e30.zip | |
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
llvm-svn: 27777
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
0 files changed, 0 insertions, 0 deletions
