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authorTom Stellard <thomas.stellard@amd.com>2015-10-01 21:16:05 +0000
committerTom Stellard <thomas.stellard@amd.com>2015-10-01 21:16:05 +0000
commite9f8b24985c22134bf5f4c336c16d0bcf8145709 (patch)
treece62934ca723a41ab9e8d74e6ce4b9036599ba56
parent85872120853461be11327e37c74ba31fa5750372 (diff)
downloadbcm5719-llvm-e9f8b24985c22134bf5f4c336c16d0bcf8145709.tar.gz
bcm5719-llvm-e9f8b24985c22134bf5f4c336c16d0bcf8145709.zip
AMDGPU/SI: Remove assert from AMDGPUOpenCLImageTypeLowering pass
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
-rw-r--r--llvm/lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp8
-rw-r--r--llvm/test/CodeGen/AMDGPU/opencl-image-metadata.ll24
2 files changed, 30 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp b/llvm/lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp
index 40b7936d663..554bf1da81f 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp
@@ -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;
diff --git a/llvm/test/CodeGen/AMDGPU/opencl-image-metadata.ll b/llvm/test/CodeGen/AMDGPU/opencl-image-metadata.ll
new file mode 100644
index 00000000000..bc467e47dc3
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/opencl-image-metadata.ll
@@ -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", !""}
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