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| author | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
| commit | 3517640443f0b5224e2a6414c246ac60016ee9d4 (patch) | |
| tree | 011ad059026ee96743b0327cd32e41679c4f4021 /lib/CodeGen/RegAllocFast.cpp | |
| parent | 7d185e4e5b1da7e07e1c3b9539e2c9bc8e983e62 (diff) | |
| download | llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.gz llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.bz2 llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.xz | |
Reapply an improved version of r180816/180817.
Change the informal convention of DBG_VALUE machine instructions so that
we can express a register-indirect address with an offset of 0.
The old convention was that a DBG_VALUE is a register-indirect value if
the offset (operand 1) is nonzero. The new convention is that a DBG_VALUE
is register-indirect if the first operand is a register and the second
operand is an immediate. For plain register values the combination reg,
reg is used. MachineInstrBuilder::BuildMI knows how to build the new
DBG_VALUES.
rdar://problem/13658587
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185966 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocFast.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index 2e9c02077b..cd8b66469f 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -298,7 +298,8 @@ void RAFast::spillVirtReg(MachineBasicBlock::iterator MI, for (unsigned li = 0, le = LRIDbgValues.size(); li != le; ++li) { MachineInstr *DBG = LRIDbgValues[li]; const MDNode *MDPtr = DBG->getOperand(2).getMetadata(); - int64_t Offset = DBG->getOperand(1).getImm(); + bool IsIndirect = DBG->getOperand(1).isImm(); // Register-indirect value? + int64_t Offset = IsIndirect ? DBG->getOperand(1).getImm() : 0; DebugLoc DL; if (MI == MBB->end()) { // If MI is at basic block end then use last instruction's location. |