1 files changed, 78 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vshift-2.ll b/test/CodeGen/X86/vshift-2.ll
new file mode 100644
index 00000000000..9496893bd1a
--- /dev/null
+++ b/test/CodeGen/X86/vshift-2.ll
@@ -0,0 +1,78 @@
+; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
+
+; test vector shifts converted to proper SSE2 vector shifts when the shift
+; amounts are the same.
+
+define void @shift1a(<2 x i64> %val, <2 x i64>* %dst) nounwind {
+entry:
+; CHECK: shift1a:
+; CHECK: psrlq
+  %lshr = lshr <2 x i64> %val, < i64 32, i64 32 >
+  store <2 x i64> %lshr, <2 x i64>* %dst
+  ret void
+}
+
+define void @shift1b(<2 x i64> %val, <2 x i64>* %dst, i64 %amt) nounwind {
+entry:
+; CHECK: shift1b:
+; CHECK: movd
+; CHECK: psrlq
+  %0 = insertelement <2 x i64> undef, i64 %amt, i32 0
+  %1 = insertelement <2 x i64> %0, i64 %amt, i32 1
+  %lshr = lshr <2 x i64> %val, %1
+  store <2 x i64> %lshr, <2 x i64>* %dst
+  ret void
+}
+
+define void @shift2a(<4 x i32> %val, <4 x i32>* %dst) nounwind {
+entry:
+; CHECK: shift2a:
+; CHECK: psrld
+  %lshr = lshr <4 x i32> %val, < i32 17, i32 17, i32 17, i32 17 >
+  store <4 x i32> %lshr, <4 x i32>* %dst
+  ret void
+}
+
+define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
+entry:
+; CHECK: shift2b:
+; CHECK: movd
+; CHECK: psrld
+  %0 = insertelement <4 x i32> undef, i32 %amt, i32 0
+  %1 = insertelement <4 x i32> %0, i32 %amt, i32 1
+  %2 = insertelement <4 x i32> %1, i32 %amt, i32 2
+  %3 = insertelement <4 x i32> %2, i32 %amt, i32 3
+  %lshr = lshr <4 x i32> %val, %3
+  store <4 x i32> %lshr, <4 x i32>* %dst
+  ret void
+}
+
+
+define void @shift3a(<8 x i16> %val, <8 x i16>* %dst) nounwind {
+entry:
+; CHECK: shift3a:
+; CHECK: psrlw
+  %lshr = lshr <8 x i16> %val, < i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5 >
+  store <8 x i16> %lshr, <8 x i16>* %dst
+  ret void
+}
+
+; properly zero extend the shift amount
+define void @shift3b(<8 x i16> %val, <8 x i16>* %dst, i16 %amt) nounwind {
+entry:
+; CHECK: shift3b:
+; CHECK: movzwl
+; CHECK: movd
+; CHECK: psrlw
+  %0 = insertelement <8 x i16> undef, i16 %amt, i32 0
+  %1 = insertelement <8 x i16> %0, i16 %amt, i32 1
+  %2 = insertelement <8 x i16> %0, i16 %amt, i32 2
+  %3 = insertelement <8 x i16> %0, i16 %amt, i32 3
+  %4 = insertelement <8 x i16> %0, i16 %amt, i32 4
+  %5 = insertelement <8 x i16> %0, i16 %amt, i32 5
+  %6 = insertelement <8 x i16> %0, i16 %amt, i32 6
+  %7 = insertelement <8 x i16> %0, i16 %amt, i32 7
+  %lshr = lshr <8 x i16> %val, %7
+  store <8 x i16> %lshr, <8 x i16>* %dst
+  ret void
+}