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| author | David Majnemer <david.majnemer@gmail.com> | 2016-02-02 06:41:55 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-02-02 06:41:55 +0000 |
| commit | ccc809e2e60fbcf519b3945bc33e92b9093405f1 (patch) | |
| tree | b8c36db9581c8698fad43cea483321b486279493 /llvm/lib/CodeGen | |
| parent | 343f7e5d8dd56180084023b9846d18e97e62ebbf (diff) | |
| download | bcm5719-llvm-ccc809e2e60fbcf519b3945bc33e92b9093405f1.tar.gz bcm5719-llvm-ccc809e2e60fbcf519b3945bc33e92b9093405f1.zip | |
[RegisterCoalescer] Better DebugLoc for reMaterializeTrivialDef
When rematerializing a computation by replacing the copy, use the copy's
location. The location of the copy is more representative of the
original program.
This partially fixes PR10003.
llvm-svn: 259469
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/RegisterCoalescer.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RegisterCoalescer.cpp b/llvm/lib/CodeGen/RegisterCoalescer.cpp index c1ff13ec7ca..95c772357c3 100644 --- a/llvm/lib/CodeGen/RegisterCoalescer.cpp +++ b/llvm/lib/CodeGen/RegisterCoalescer.cpp @@ -939,11 +939,13 @@ bool RegisterCoalescer::reMaterializeTrivialDef(const CoalescerPair &CP, } } + DebugLoc DL = CopyMI->getDebugLoc(); MachineBasicBlock *MBB = CopyMI->getParent(); MachineBasicBlock::iterator MII = std::next(MachineBasicBlock::iterator(CopyMI)); TII->reMaterialize(*MBB, MII, DstReg, SrcIdx, DefMI, *TRI); MachineInstr *NewMI = std::prev(MII); + NewMI->setDebugLoc(DL); // In a situation like the following: // %vreg0:subreg = instr ; DefMI, subreg = DstIdx |
