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| author | Evan Cheng <evan.cheng@apple.com> | 2012-05-30 00:42:02 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-05-30 00:42:02 +0000 |
| commit | 50954fb3e164cc59387ef0887c703dcc70f331db (patch) | |
| tree | cc68661f2d588532a27c77ae912199877775bfc1 /llvm/lib/CodeGen | |
| parent | 747482c5793b01b6866e198e64440fed8375a68f (diff) | |
| download | bcm5719-llvm-50954fb3e164cc59387ef0887c703dcc70f331db.tar.gz bcm5719-llvm-50954fb3e164cc59387ef0887c703dcc70f331db.zip | |
If-converter models predicated defs as read + write. The read should be marked as 'undef' since it may not already be live. This appeases -verify-machineinstrs.
llvm-svn: 157662
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/IfConversion.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/IfConversion.cpp b/llvm/lib/CodeGen/IfConversion.cpp index 75ae5b9c2c2..00ea3c599f6 100644 --- a/llvm/lib/CodeGen/IfConversion.cpp +++ b/llvm/lib/CodeGen/IfConversion.cpp @@ -993,7 +993,8 @@ static void UpdatePredRedefs(MachineInstr *MI, SmallSet<unsigned,4> &Redefs, if (AddImpUse) // Treat predicated update as read + write. MI->addOperand(MachineOperand::CreateReg(Reg, false/*IsDef*/, - true/*IsImp*/,false/*IsKill*/)); + true/*IsImp*/,false/*IsKill*/, + false/*IsDead*/,true/*IsUndef*/)); } else { Redefs.insert(Reg); for (const uint16_t *SR = TRI->getSubRegisters(Reg); *SR; ++SR) |
