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R600: Fix R600ControlFlowFinalizer not considering VTX_READ 128 bit dst reg

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Patch by: Vincent Lejeune

https://bugs.freedesktop.org/show_bug.cgi?id=64877

NOTE: This is a candidate for the 3.3 branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182600 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard
2013-05-23 18:26:42 +00:00
parent 5c35290fa3
commit d078070f6a
2 changed files with 31 additions and 2 deletions
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11
lib/Target/R600/R600ControlFlowFinalizer.cpp
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@@ -117,8 +117,15 @@ private:
const MachineOperand &MO = *I;
if (!MO.isReg())
continue;
if (MO.isDef())
DstMI = MO.getReg();
if (MO.isDef()) {
unsigned Reg = MO.getReg();
if (AMDGPU::R600_Reg128RegClass.contains(Reg))
DstMI = Reg;
else
DstMI = TRI.getMatchingSuperReg(Reg,
TRI.getSubRegFromChannel(TRI.getHWRegChan(Reg)),
&AMDGPU::R600_Reg128RegClass);
}
if (MO.isUse()) {
unsigned Reg = MO.getReg();
if (AMDGPU::R600_Reg128RegClass.contains(Reg))