[PATCH] D60182: [FastISel] Fix the crash in gc.result lowering

[Serguei Katkov via Phabricator via llvm-commits]

skatkov updated this revision to Diff 193438.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60182/new/

https://reviews.llvm.org/D60182

Files:
  lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
  test/CodeGen/X86/fast-isel-gc-intrinsics.ll


Index: test/CodeGen/X86/fast-isel-gc-intrinsics.ll
===================================================================
--- test/CodeGen/X86/fast-isel-gc-intrinsics.ll
+++ test/CodeGen/X86/fast-isel-gc-intrinsics.ll
@@ -17,6 +17,8 @@
 entry:
   %safepoint_token = tail call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0)
   %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
+  br label %exit
+exit:
   ret i1 %call1
 }
 
Index: lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
===================================================================
--- lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1721,7 +1721,8 @@
         // to keep track of gc-relocates for a particular gc-statepoint. This is
         // done by SelectionDAGBuilder::LowerAsSTATEPOINT, called before
         // visitGCRelocate.
-        if (isa<CallInst>(Inst) && !isStatepoint(Inst) && !isGCRelocate(Inst)) {
+        if (isa<CallInst>(Inst) && !isStatepoint(Inst) && !isGCRelocate(Inst) &&
+            !isGCResult(Inst)) {
           OptimizationRemarkMissed R("sdagisel", "FastISelFailure",
                                      Inst->getDebugLoc(), LLVMBB);
 


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