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AMDGPU: Verify instructions in non-debug builds as well 

And emit an error if it fails.

This prevents illegal instructions from getting sent to the GPU, which
would potentially result in a hang.

This is a candidate for the stable branch(es).

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
llvm-svn: 263627
This commit is contained in:
Michel Danzer 2016-03-16 09:10:42 +00:00
parent beb79ceb19
commit 302f83ac4e
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
View File

@ -88,13 +88,13 @@ void AMDGPUAsmPrinter::EmitInstruction(const MachineInstr *MI) {
const AMDGPUSubtarget &STI = MF->getSubtarget<AMDGPUSubtarget>();
AMDGPUMCInstLower MCInstLowering(OutContext, STI);
#ifdef _DEBUG
StringRef Err;
if (!STI.getInstrInfo()->verifyInstruction(MI, Err)) {
errs() << "Warning: Illegal instruction detected: " << Err << "\n";
LLVMContext &C = MI->getParent()->getParent()->getFunction()->getContext();
C.emitError("Illegal instruction detected: " + Err);
MI->dump();
}
#endif
if (MI->isBundle()) {
const MachineBasicBlock *MBB = MI->getParent();
MachineBasicBlock::const_instr_iterator I = ++MI->getIterator();