Make EXTRACT_VECTOR_ELT a bit more flexible in terms of the returned
value. Adjust other code to deal with that correctly. Make
DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT take advantage of
this new flexibility to simplify the code and make it deal with unusual
vectors (like <4 x i1>) correctly. Fixes PR3037.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75176 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/2009-07-09-ExtractBoolFromVector.ll b/test/CodeGen/X86/2009-07-09-ExtractBoolFromVector.ll
new file mode 100644
index 0000000..62a62a6
--- /dev/null
+++ b/test/CodeGen/X86/2009-07-09-ExtractBoolFromVector.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=x86
+; PR3037
+
+define void @entry(<4 x i8>* %dest) {
+ %1 = xor <4 x i1> zeroinitializer, < i1 true, i1 true, i1 true, i1 true >
+ %2 = extractelement <4 x i1> %1, i32 3
+ %3 = zext i1 %2 to i8
+ %4 = insertelement <4 x i8> zeroinitializer, i8 %3, i32 3
+ store <4 x i8> %4, <4 x i8>* %dest, align 1
+ ret void
+}