6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-04 21:31:03 +00:00
Code Issues Projects Releases Wiki Activity

R600/SI: isLegalOperand() shouldn't check constant bus for SALU instructions

Browse Source 
The constant bus restrictions only apply to VALU instructions.  This
enables SIFoldOperands to fold immediates into SALU instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224623 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-12-19 22:15:37 +00:00
parent 87bd2fa24b
commit 2516f059db
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Target/R600/SIInstrInfo.cpp
View File

@ -1405,7 +1405,7 @@ bool SIInstrInfo::isOperandLegal(const MachineInstr *MI, unsigned OpIdx,
if (!MO) if (!MO)
MO = &MI->getOperand(OpIdx); MO = &MI->getOperand(OpIdx);
if (usesConstantBus(MRI, *MO)) { if (isVALU(InstDesc.Opcode) && usesConstantBus(MRI, *MO)) {
unsigned SGPRUsed = unsigned SGPRUsed =
MO->isReg() ? MO->getReg() : (unsigned)AMDGPU::NoRegister; MO->isReg() ? MO->getReg() : (unsigned)AMDGPU::NoRegister;
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {