[PATCH] D32364: [AMDGPU] Handle SI_MASKED_UNREACHABLE in instruction emitter

[Yaxun Liu via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL301025: [AMDGPU] Handle SI_MASKED_UNREACHABLE in instruction emitter (authored by yaxunl).

Changed prior to commit:
  https://reviews.llvm.org/D32364?vs=96189&id=96206#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D32364

Files:
  llvm/trunk/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
  llvm/trunk/test/CodeGen/AMDGPU/llvm.amdgcn.unreachable.ll


Index: llvm/trunk/test/CodeGen/AMDGPU/llvm.amdgcn.unreachable.ll
===================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/llvm.amdgcn.unreachable.ll
+++ llvm/trunk/test/CodeGen/AMDGPU/llvm.amdgcn.unreachable.ll
@@ -0,0 +1,9 @@
+; RUN: llc -march amdgcn %s -filetype=obj 
+; RUN: llc -march amdgcn <%s | FileCheck %s
+define amdgpu_kernel void @f() {
+  ; CHECK: ; divergent unreachable
+  call void @llvm.amdgcn.unreachable()
+  ret void
+}
+
+declare void @llvm.amdgcn.unreachable()
Index: llvm/trunk/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp
@@ -225,6 +225,12 @@
       return;
     }
 
+    if (MI->getOpcode() == AMDGPU::SI_MASKED_UNREACHABLE) {
+      if (isVerbose())
+        OutStreamer->emitRawComment(" divergent unreachable");
+      return;
+    }
+
     MCInst TmpInst;
     MCInstLowering.lower(MI, TmpInst);
     EmitToStreamer(*OutStreamer, TmpInst);


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