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AMDGPU/SI: Remove assert from AMDGPUOpenCLImageTypeLowering pass

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Summary:
Instead of asserting when the kernel metadata is different than we expect,
we should just skip lowering that function.  This fixes assertion
failures with OpenCL argument metadata from older LLVM releases.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D13356

llvm-svn: 249073
This commit is contained in:
Tom Stellard 2015-10-01 21:16:05 +00:00
parent 89bcb974e2
commit 597d1f5f9b
2 changed files with 30 additions and 2 deletions
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8
lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp
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@ -94,8 +94,12 @@ GetFunctionFromMDNode(MDNode *Node) {
return nullptr;
if (!ArgNode->getOperand(0))
return nullptr;
assert(cast<MDString>(ArgNode->getOperand(0))->getString() ==
KernelArgMDNodeNames[i] && "Wrong kernel arg metadata name");
// FIXME: It should be possible to do image lowering when some metadata
// args missing or not in the expected order.
MDString *StringNode = dyn_cast<MDString>(ArgNode->getOperand(0));
if (!StringNode || StringNode->getString() != KernelArgMDNodeNames[i])
return nullptr;
}
return F;

24
test/CodeGen/AMDGPU/opencl-image-metadata.ll Normal file
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@ -0,0 +1,24 @@
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG --check-prefix=FUNC %s
; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s
; Make sure the OpenCL Image lowering pass doesn't crash when argument metadata
; is not in expected order.
; EG: CF_END
; SI: s_endpgm
define void @kernel(i32 addrspace(1)* %out) {
entry:
store i32 0, i32 addrspace(1)* %out
ret void
}
attributes #3 = { nounwind }
!opencl.kernels = !{!0}
!0 = !{void (i32 addrspace(1)*)* @kernel, !1, !2, !3, !4, !5}
!1 = !{!"kernel_arg_addr_space", i32 0}
!2 = !{!"kernel_arg_access_qual", !"none"}
!3 = !{!"kernel_arg_type", !"int*"}
!4 = !{!"kernel_arg_type_qual", !""}
!5 = !{!"kernel_arg_name", !""}