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| author | Matthias Braun <matze@braunis.de> | 2015-07-14 17:52:07 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2015-07-14 17:52:07 +0000 |
| commit | 9912bb817cef9d1829acb4baec4a27b7eaf5b610 (patch) | |
| tree | fd24e6d6cd0c74144197fefd9b612624eafa5043 /llvm/lib/Target/AArch64/AArch64FrameLowering.cpp | |
| parent | 092c475e250af64e7b9ba459067d43cb71fb6dfd (diff) | |
| download | bcm5719-llvm-9912bb817cef9d1829acb4baec4a27b7eaf5b610.tar.gz bcm5719-llvm-9912bb817cef9d1829acb4baec4a27b7eaf5b610.zip | |
MachineRegisterInfo: Remove UsedPhysReg infrastructure
We have a detailed def/use lists for every physical register in
MachineRegisterInfo anyway, so there is little use in maintaining an
additional bitset of which ones are used.
Removing it frees us from extra book keeping. This simplifies
VirtRegMap.
Differential Revision: http://reviews.llvm.org/D10911
llvm-svn: 242173
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64FrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FrameLowering.cpp | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp index a76473f7e53..a7817f4f67d 100644 --- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp @@ -354,7 +354,6 @@ void AArch64FrameLowering::emitPrologue(MachineFunction &MF, if (NumBytes && NeedsRealignment) { // Use the first callee-saved register as a scratch register. scratchSPReg = AArch64::X9; - MF.getRegInfo().setPhysRegUsed(scratchSPReg); } // If we're a leaf function, try using the red zone. |
