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R600/SI: Do abs/neg folding with ComplexPatterns

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Abs/neg folding has moved out of foldOperands and into the instruction
selection phase using complex patterns.  As a consequence of this
change, we now prefer to select the 64-bit encoding for most
instructions and the modifier operands have been dropped from
integer VOP3 instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214467 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard
2014-08-01 00:32:39 +00:00
parent f3b62dfcb2
commit 17c8fefc9f
16 changed files with 1069 additions and 696 deletions
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2
lib/Target/R600/SIShrinkInstructions.cpp
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@@ -93,7 +93,7 @@ static bool canShrink(MachineInstr &MI, const SIInstrInfo *TII,
const MachineOperand *Src1Mod =
TII->getNamedOperand(MI, AMDGPU::OpName::src1_modifiers);
if (Src1 && (!isVGPR(Src1, TRI, MRI) || Src1Mod->getImm() != 0))
if (Src1 && (!isVGPR(Src1, TRI, MRI) || (Src1Mod && Src1Mod->getImm() != 0)))
return false;
// We don't need to check src0, all input types are legal, so just make