Allow constants of different types to share constant pool entries
if they have compatible encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85359 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/constant-pool-sharing.ll b/test/CodeGen/X86/constant-pool-sharing.ll
new file mode 100644
index 0000000..c3e97ad
--- /dev/null
+++ b/test/CodeGen/X86/constant-pool-sharing.ll
@@ -0,0 +1,19 @@
+; RUN: llc < %s -march=x86-64 | FileCheck %s
+
+; llc should share constant pool entries between this integer vector
+; and this floating-point vector since they have the same encoding.
+
+; CHECK: LCPI1_0(%rip), %xmm0
+; CHECK: movaps %xmm0, (%rdi)
+; CHECK: movaps %xmm0, (%rsi)
+
+define void @foo(<4 x i32>* %p, <4 x float>* %q, i1 %t) nounwind {
+entry:
+ br label %loop
+loop:
+ store <4 x i32><i32 1073741824, i32 1073741824, i32 1073741824, i32 1073741824>, <4 x i32>* %p
+ store <4 x float><float 2.0, float 2.0, float 2.0, float 2.0>, <4 x float>* %q
+ br i1 %t, label %loop, label %ret
+ret:
+ ret void
+}