Add a test to ensure that all-ones vectors are materialized with pcmpeqd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48247 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/all-ones-vector.ll b/test/CodeGen/X86/all-ones-vector.ll
new file mode 100644 (file)
index 0000000..a79002b
--- /dev/null
+++ b/test/CodeGen/X86/all-ones-vector.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep pcmpeqd | count 4
+
+define <4 x i32> @ioo() {
+        ret <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>
+}
+define <2 x i64> @loo() {
+        ret <2 x i64> <i64 -1, i64 -1>
+}
+define <2 x double> @doo() {
+        ret <2 x double> <double 0xffffffffffffffff, double 0xffffffffffffffff>
+}
+define <4 x float> @foo() {
+        ret <4 x float> <float 0xffffffffe0000000, float 0xffffffffe0000000, float 0xffffffffe0000000, float 0xffffffffe0000000>
+}