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| author | Eric Christopher <echristo@apple.com> | 2012-03-20 01:07:58 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-03-20 01:07:58 +0000 |
| commit | 8c5293c9556317143505c085cf428e11962e1273 (patch) | |
| tree | 66fc7d311692c91df4ed5ae8e2c7ab6dc9ce4f5f /lib | |
| parent | c415af225d9546a66ac9f7368a973e0be25b438d (diff) | |
| download | llvm-8c5293c9556317143505c085cf428e11962e1273.tar.gz llvm-8c5293c9556317143505c085cf428e11962e1273.tar.bz2 llvm-8c5293c9556317143505c085cf428e11962e1273.tar.xz | |
Do everything up to generating code to try to get a register for
a variable. The previous code would break the debug info changing
code invariant. This will regress debug info for arguments where
we elide the alloca created.
Fixes rdar://11066468
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153074 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index c5efde3746..9f4a44a492 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -590,7 +590,12 @@ bool FastISel::SelectCall(const User *I) { Reg = TRI.getFrameRegister(*FuncInfo.MF); } if (!Reg) - Reg = getRegForValue(Address); + Reg = lookUpRegForValue(Address); + + if (!Reg && isa<Instruction>(Address) && + (!isa<AllocaInst>(Address) || + !FuncInfo.StaticAllocaMap.count(cast<AllocaInst>(Address)))) + Reg = FuncInfo.InitializeRegForValue(Address); if (Reg) BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, |