fix PR6577, a bug in sdbuilder lowering select instructions
whose true value was not Val#0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98336 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index ae5474d..f4d3c34 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -2185,7 +2185,8 @@
for (unsigned i = 0; i != NumValues; ++i)
Values[i] = DAG.getNode(ISD::SELECT, getCurDebugLoc(),
- TrueVal.getNode()->getValueType(i), Cond,
+ TrueVal.getNode()->getValueType(TrueVal.getResNo()+i),
+ Cond,
SDValue(TrueVal.getNode(),
TrueVal.getResNo() + i),
SDValue(FalseVal.getNode(),
diff --git a/test/CodeGen/X86/crash.ll b/test/CodeGen/X86/crash.ll
index b9037f3..08f59ad 100644
--- a/test/CodeGen/X86/crash.ll
+++ b/test/CodeGen/X86/crash.ll
@@ -33,3 +33,17 @@
if.end: ; preds = %land.end
ret void
}
+
+; PR6577
+%pair = type { i64, double }
+
+define void @on4() {
+dependentGraph243.exit:
+ %subject19 = load %pair* undef ; <%1> [#uses=1]
+ %0 = extractvalue %pair %subject19, 1 ; <double> [#uses=2]
+ %1 = select i1 undef, double %0, double undef ; <double> [#uses=1]
+ %2 = select i1 undef, double %1, double %0 ; <double> [#uses=1]
+ %3 = insertvalue %pair undef, double %2, 1 ; <%1> [#uses=1]
+ store %pair %3, %pair* undef
+ ret void
+}