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AMDGPU: Error more gracefully on libcalls
ClosedPublic

Authored by arsenm on Aug 7 2018, 11:25 AM.

Reviewers

rampitec

Summary

I think this is the only situation where the callsite
will have a null instruction.

LGTM

This revision is now accepted and ready to land.Aug 8 2018, 12:05 AM

r339271

Path

Size

lib/

Target/

AMDGPU/

3 lines

test/

CodeGen/

AMDGPU/

7 lines

Show First 20 Lines • Show All 2,380 Lines • ▼ Show 20 Lines	SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI,
bool IsThisReturn = false;		bool IsThisReturn = false;
MachineFunction &MF = DAG.getMachineFunction();		MachineFunction &MF = DAG.getMachineFunction();

if (IsVarArg) {		if (IsVarArg) {
return lowerUnhandledCall(CLI, InVals,		return lowerUnhandledCall(CLI, InVals,
"unsupported call to variadic function ");		"unsupported call to variadic function ");
}		}

		if (!CLI.CS.getInstruction())
		report_fatal_error("unsupported libcall legalization");

if (!CLI.CS.getCalledFunction()) {		if (!CLI.CS.getCalledFunction()) {
return lowerUnhandledCall(CLI, InVals,		return lowerUnhandledCall(CLI, InVals,
"unsupported indirect call to function ");		"unsupported indirect call to function ");
}		}

if (IsTailCall && MF.getTarget().Options.GuaranteedTailCallOpt) {		if (IsTailCall && MF.getTarget().Options.GuaranteedTailCallOpt) {
return lowerUnhandledCall(CLI, InVals,		return lowerUnhandledCall(CLI, InVals,
"unsupported required tail call to function ");		"unsupported required tail call to function ");
▲ Show 20 Lines • Show All 6,183 Lines • Show Last 20 Lines

				; RUN: not llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs %s 2>&1 \| FileCheck %s

				; CHECK: LLVM ERROR: unsupported libcall legalization
				define i128 @v_sdiv_i128_vv(i128 %lhs, i128 %rhs) {
				%shl = sdiv i128 %lhs, %rhs
				ret i128 %shl
				}