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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-15 22:24:22 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-15 22:24:22 +0000 |
| commit | 13dffcb76658d9b5ce615f3e5d3f46722e1292df (patch) | |
| tree | 5c682e17b98831926a6aa3b3f6b1b114efd766eb /llvm/lib/CodeGen/LiveRegMatrix.h | |
| parent | f14a6e5f13fedb97e6955151d3f4fb7a3c2bc0cc (diff) | |
| download | bcm5719-llvm-13dffcb76658d9b5ce615f3e5d3f46722e1292df.tar.gz bcm5719-llvm-13dffcb76658d9b5ce615f3e5d3f46722e1292df.zip | |
Accept null PhysReg arguments to checkRegMaskInterference.
Calling checkRegMaskInterference(VirtReg) checks if VirtReg crosses any
regmask operands, regardless of the registers they clobber.
llvm-svn: 158563
Diffstat (limited to 'llvm/lib/CodeGen/LiveRegMatrix.h')
| -rw-r--r-- | llvm/lib/CodeGen/LiveRegMatrix.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveRegMatrix.h b/llvm/lib/CodeGen/LiveRegMatrix.h index 4c3e7d47821..019a5f5877e 100644 --- a/llvm/lib/CodeGen/LiveRegMatrix.h +++ b/llvm/lib/CodeGen/LiveRegMatrix.h @@ -124,7 +124,8 @@ public: /// Check for regmask interference only. /// Return true if VirtReg crosses a regmask operand that clobbers PhysReg. - bool checkRegMaskInterference(LiveInterval &VirtReg, unsigned PhysReg); + /// If PhysReg is null, check if VirtReg crosses any regmask operands. + bool checkRegMaskInterference(LiveInterval &VirtReg, unsigned PhysReg = 0); /// Check for regunit interference only. /// Return true if VirtReg overlaps a fixed assignment of one of PhysRegs's |
