Fix undefined behavior in vector shift tests.

[oota-llvm.git] / test / CodeGen / ARM / vshift.ll

diff --git a/test/CodeGen/ARM/vshift.ll b/test/CodeGen/ARM/vshift.ll
index 8c5c4aad18d83b7668ce5bc3966998ce6c12a878..92a5ebd00086c811c4585acb8438d48983faea18 100644 (file)
--- a/test/CodeGen/ARM/vshift.ll
+++ b/test/CodeGen/ARM/vshift.ll
@@ -1,30 +1,8 @@
-; RUN: llvm-as < %s | llc -march=arm -mattr=+neon > %t
-; RUN: grep {vshl\\.s8} %t | count 2
-; RUN: grep {vshl\\.s16} %t | count 2
-; RUN: grep {vshl\\.s32} %t | count 2
-; RUN: grep {vshl\\.s64} %t | count 2
-; RUN: grep {vshl\\.u8} %t | count 4
-; RUN: grep {vshl\\.u16} %t | count 4
-; RUN: grep {vshl\\.u32} %t | count 4
-; RUN: grep {vshl\\.u64} %t | count 4
-; RUN: grep {vshl\\.i8} %t | count 2
-; RUN: grep {vshl\\.i16} %t | count 2
-; RUN: grep {vshl\\.i32} %t | count 2
-; RUN: grep {vshl\\.i64} %t | count 2
-; RUN: grep {vshr\\.u8} %t | count 2
-; RUN: grep {vshr\\.u16} %t | count 2
-; RUN: grep {vshr\\.u32} %t | count 2
-; RUN: grep {vshr\\.u64} %t | count 2
-; RUN: grep {vshr\\.s8} %t | count 2
-; RUN: grep {vshr\\.s16} %t | count 2
-; RUN: grep {vshr\\.s32} %t | count 2
-; RUN: grep {vshr\\.s64} %t | count 2
-; RUN: grep {vneg\\.s8} %t | count 4
-; RUN: grep {vneg\\.s16} %t | count 4
-; RUN: grep {vneg\\.s32} %t | count 4
-; RUN: grep {vsub\\.i64} %t | count 4
+; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
 
 define <8 x i8> @vshls8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
+;CHECK-LABEL: vshls8:
+;CHECK: vshl.u8
        %tmp1 = load <8 x i8>* %A
        %tmp2 = load <8 x i8>* %B
        %tmp3 = shl <8 x i8> %tmp1, %tmp2
@@ -32,6 +10,8 @@ define <8 x i8> @vshls8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
 }
 
 define <4 x i16> @vshls16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+;CHECK-LABEL: vshls16:
+;CHECK: vshl.u16
        %tmp1 = load <4 x i16>* %A
        %tmp2 = load <4 x i16>* %B
        %tmp3 = shl <4 x i16> %tmp1, %tmp2
@@ -39,6 +19,8 @@ define <4 x i16> @vshls16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
 }
 
 define <2 x i32> @vshls32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
+;CHECK-LABEL: vshls32:
+;CHECK: vshl.u32
        %tmp1 = load <2 x i32>* %A
        %tmp2 = load <2 x i32>* %B
        %tmp3 = shl <2 x i32> %tmp1, %tmp2
@@ -46,6 +28,8 @@ define <2 x i32> @vshls32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
 }
 
 define <1 x i64> @vshls64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
+;CHECK-LABEL: vshls64:
+;CHECK: vshl.u64
        %tmp1 = load <1 x i64>* %A
        %tmp2 = load <1 x i64>* %B
        %tmp3 = shl <1 x i64> %tmp1, %tmp2
@@ -53,30 +37,40 @@ define <1 x i64> @vshls64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
 }
 
 define <8 x i8> @vshli8(<8 x i8>* %A) nounwind {
+;CHECK-LABEL: vshli8:
+;CHECK: vshl.i8
        %tmp1 = load <8 x i8>* %A
        %tmp2 = shl <8 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <8 x i8> %tmp2
 }
 
 define <4 x i16> @vshli16(<4 x i16>* %A) nounwind {
+;CHECK-LABEL: vshli16:
+;CHECK: vshl.i16
        %tmp1 = load <4 x i16>* %A
        %tmp2 = shl <4 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15 >
        ret <4 x i16> %tmp2
 }
 
 define <2 x i32> @vshli32(<2 x i32>* %A) nounwind {
+;CHECK-LABEL: vshli32:
+;CHECK: vshl.i32
        %tmp1 = load <2 x i32>* %A
        %tmp2 = shl <2 x i32> %tmp1, < i32 31, i32 31 >
        ret <2 x i32> %tmp2
 }
 
 define <1 x i64> @vshli64(<1 x i64>* %A) nounwind {
+;CHECK-LABEL: vshli64:
+;CHECK: vshl.i64
        %tmp1 = load <1 x i64>* %A
        %tmp2 = shl <1 x i64> %tmp1, < i64 63 >
        ret <1 x i64> %tmp2
 }
 
 define <16 x i8> @vshlQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
+;CHECK-LABEL: vshlQs8:
+;CHECK: vshl.u8
        %tmp1 = load <16 x i8>* %A
        %tmp2 = load <16 x i8>* %B
        %tmp3 = shl <16 x i8> %tmp1, %tmp2
@@ -84,6 +78,8 @@ define <16 x i8> @vshlQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
 }
 
 define <8 x i16> @vshlQs16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+;CHECK-LABEL: vshlQs16:
+;CHECK: vshl.u16
        %tmp1 = load <8 x i16>* %A
        %tmp2 = load <8 x i16>* %B
        %tmp3 = shl <8 x i16> %tmp1, %tmp2
@@ -91,6 +87,8 @@ define <8 x i16> @vshlQs16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
 }
 
 define <4 x i32> @vshlQs32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+;CHECK-LABEL: vshlQs32:
+;CHECK: vshl.u32
        %tmp1 = load <4 x i32>* %A
        %tmp2 = load <4 x i32>* %B
        %tmp3 = shl <4 x i32> %tmp1, %tmp2
@@ -98,6 +96,8 @@ define <4 x i32> @vshlQs32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
 }
 
 define <2 x i64> @vshlQs64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
+;CHECK-LABEL: vshlQs64:
+;CHECK: vshl.u64
        %tmp1 = load <2 x i64>* %A
        %tmp2 = load <2 x i64>* %B
        %tmp3 = shl <2 x i64> %tmp1, %tmp2
@@ -105,30 +105,41 @@ define <2 x i64> @vshlQs64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
 }
 
 define <16 x i8> @vshlQi8(<16 x i8>* %A) nounwind {
+;CHECK-LABEL: vshlQi8:
+;CHECK: vshl.i8
        %tmp1 = load <16 x i8>* %A
        %tmp2 = shl <16 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <16 x i8> %tmp2
 }
 
 define <8 x i16> @vshlQi16(<8 x i16>* %A) nounwind {
+;CHECK-LABEL: vshlQi16:
+;CHECK: vshl.i16
        %tmp1 = load <8 x i16>* %A
        %tmp2 = shl <8 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15 >
        ret <8 x i16> %tmp2
 }
 
 define <4 x i32> @vshlQi32(<4 x i32>* %A) nounwind {
+;CHECK-LABEL: vshlQi32:
+;CHECK: vshl.i32
        %tmp1 = load <4 x i32>* %A
        %tmp2 = shl <4 x i32> %tmp1, < i32 31, i32 31, i32 31, i32 31 >
        ret <4 x i32> %tmp2
 }
 
 define <2 x i64> @vshlQi64(<2 x i64>* %A) nounwind {
+;CHECK-LABEL: vshlQi64:
+;CHECK: vshl.i64
        %tmp1 = load <2 x i64>* %A
        %tmp2 = shl <2 x i64> %tmp1, < i64 63, i64 63 >
        ret <2 x i64> %tmp2
 }
 
 define <8 x i8> @vlshru8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
+;CHECK-LABEL: vlshru8:
+;CHECK: vneg.s8
+;CHECK: vshl.u8
        %tmp1 = load <8 x i8>* %A
        %tmp2 = load <8 x i8>* %B
        %tmp3 = lshr <8 x i8> %tmp1, %tmp2
@@ -136,6 +147,9 @@ define <8 x i8> @vlshru8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
 }
 
 define <4 x i16> @vlshru16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+;CHECK-LABEL: vlshru16:
+;CHECK: vneg.s16
+;CHECK: vshl.u16
        %tmp1 = load <4 x i16>* %A
        %tmp2 = load <4 x i16>* %B
        %tmp3 = lshr <4 x i16> %tmp1, %tmp2
@@ -143,6 +157,9 @@ define <4 x i16> @vlshru16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
 }
 
 define <2 x i32> @vlshru32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
+;CHECK-LABEL: vlshru32:
+;CHECK: vneg.s32
+;CHECK: vshl.u32
        %tmp1 = load <2 x i32>* %A
        %tmp2 = load <2 x i32>* %B
        %tmp3 = lshr <2 x i32> %tmp1, %tmp2
@@ -150,6 +167,9 @@ define <2 x i32> @vlshru32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
 }
 
 define <1 x i64> @vlshru64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
+;CHECK-LABEL: vlshru64:
+;CHECK: vsub.i64
+;CHECK: vshl.u64
        %tmp1 = load <1 x i64>* %A
        %tmp2 = load <1 x i64>* %B
        %tmp3 = lshr <1 x i64> %tmp1, %tmp2
@@ -157,30 +177,41 @@ define <1 x i64> @vlshru64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
 }
 
 define <8 x i8> @vlshri8(<8 x i8>* %A) nounwind {
+;CHECK-LABEL: vlshri8:
+;CHECK: vshr.u8
        %tmp1 = load <8 x i8>* %A
-       %tmp2 = lshr <8 x i8> %tmp1, < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
+       %tmp2 = lshr <8 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <8 x i8> %tmp2
 }
 
 define <4 x i16> @vlshri16(<4 x i16>* %A) nounwind {
+;CHECK-LABEL: vlshri16:
+;CHECK: vshr.u16
        %tmp1 = load <4 x i16>* %A
-       %tmp2 = lshr <4 x i16> %tmp1, < i16 16, i16 16, i16 16, i16 16 >
+       %tmp2 = lshr <4 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15 >
        ret <4 x i16> %tmp2
 }
 
 define <2 x i32> @vlshri32(<2 x i32>* %A) nounwind {
+;CHECK-LABEL: vlshri32:
+;CHECK: vshr.u32
        %tmp1 = load <2 x i32>* %A
-       %tmp2 = lshr <2 x i32> %tmp1, < i32 32, i32 32 >
+       %tmp2 = lshr <2 x i32> %tmp1, < i32 31, i32 31 >
        ret <2 x i32> %tmp2
 }
 
 define <1 x i64> @vlshri64(<1 x i64>* %A) nounwind {
+;CHECK-LABEL: vlshri64:
+;CHECK: vshr.u64
        %tmp1 = load <1 x i64>* %A
-       %tmp2 = lshr <1 x i64> %tmp1, < i64 64 >
+       %tmp2 = lshr <1 x i64> %tmp1, < i64 63 >
        ret <1 x i64> %tmp2
 }
 
 define <16 x i8> @vlshrQu8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
+;CHECK-LABEL: vlshrQu8:
+;CHECK: vneg.s8
+;CHECK: vshl.u8
        %tmp1 = load <16 x i8>* %A
        %tmp2 = load <16 x i8>* %B
        %tmp3 = lshr <16 x i8> %tmp1, %tmp2
@@ -188,6 +219,9 @@ define <16 x i8> @vlshrQu8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
 }
 
 define <8 x i16> @vlshrQu16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+;CHECK-LABEL: vlshrQu16:
+;CHECK: vneg.s16
+;CHECK: vshl.u16
        %tmp1 = load <8 x i16>* %A
        %tmp2 = load <8 x i16>* %B
        %tmp3 = lshr <8 x i16> %tmp1, %tmp2
@@ -195,6 +229,9 @@ define <8 x i16> @vlshrQu16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
 }
 
 define <4 x i32> @vlshrQu32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+;CHECK-LABEL: vlshrQu32:
+;CHECK: vneg.s32
+;CHECK: vshl.u32
        %tmp1 = load <4 x i32>* %A
        %tmp2 = load <4 x i32>* %B
        %tmp3 = lshr <4 x i32> %tmp1, %tmp2
@@ -202,6 +239,9 @@ define <4 x i32> @vlshrQu32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
 }
 
 define <2 x i64> @vlshrQu64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
+;CHECK-LABEL: vlshrQu64:
+;CHECK: vsub.i64
+;CHECK: vshl.u64
        %tmp1 = load <2 x i64>* %A
        %tmp2 = load <2 x i64>* %B
        %tmp3 = lshr <2 x i64> %tmp1, %tmp2
@@ -209,30 +249,48 @@ define <2 x i64> @vlshrQu64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
 }
 
 define <16 x i8> @vlshrQi8(<16 x i8>* %A) nounwind {
+;CHECK-LABEL: vlshrQi8:
+;CHECK: vshr.u8
        %tmp1 = load <16 x i8>* %A
-       %tmp2 = lshr <16 x i8> %tmp1, < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
+       %tmp2 = lshr <16 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <16 x i8> %tmp2
 }
 
 define <8 x i16> @vlshrQi16(<8 x i16>* %A) nounwind {
+;CHECK-LABEL: vlshrQi16:
+;CHECK: vshr.u16
        %tmp1 = load <8 x i16>* %A
-       %tmp2 = lshr <8 x i16> %tmp1, < i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16 >
+       %tmp2 = lshr <8 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15 >
        ret <8 x i16> %tmp2
 }
 
 define <4 x i32> @vlshrQi32(<4 x i32>* %A) nounwind {
+;CHECK-LABEL: vlshrQi32:
+;CHECK: vshr.u32
        %tmp1 = load <4 x i32>* %A
-       %tmp2 = lshr <4 x i32> %tmp1, < i32 32, i32 32, i32 32, i32 32 >
+       %tmp2 = lshr <4 x i32> %tmp1, < i32 31, i32 31, i32 31, i32 31 >
        ret <4 x i32> %tmp2
 }
 
 define <2 x i64> @vlshrQi64(<2 x i64>* %A) nounwind {
+;CHECK-LABEL: vlshrQi64:
+;CHECK: vshr.u64
        %tmp1 = load <2 x i64>* %A
-       %tmp2 = lshr <2 x i64> %tmp1, < i64 64, i64 64 >
+       %tmp2 = lshr <2 x i64> %tmp1, < i64 63, i64 63 >
        ret <2 x i64> %tmp2
 }
 
+; Example that requires splitting and expanding a vector shift.
+define <2 x i64> @update(<2 x i64> %val) nounwind readnone {
+entry:
+       %shr = lshr <2 x i64> %val, < i64 2, i64 2 >            ; <<2 x i64>> [#uses=1]
+       ret <2 x i64> %shr
+}
+
 define <8 x i8> @vashrs8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
+;CHECK-LABEL: vashrs8:
+;CHECK: vneg.s8
+;CHECK: vshl.s8
        %tmp1 = load <8 x i8>* %A
        %tmp2 = load <8 x i8>* %B
        %tmp3 = ashr <8 x i8> %tmp1, %tmp2
@@ -240,6 +298,9 @@ define <8 x i8> @vashrs8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
 }
 
 define <4 x i16> @vashrs16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+;CHECK-LABEL: vashrs16:
+;CHECK: vneg.s16
+;CHECK: vshl.s16
        %tmp1 = load <4 x i16>* %A
        %tmp2 = load <4 x i16>* %B
        %tmp3 = ashr <4 x i16> %tmp1, %tmp2
@@ -247,6 +308,9 @@ define <4 x i16> @vashrs16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
 }
 
 define <2 x i32> @vashrs32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
+;CHECK-LABEL: vashrs32:
+;CHECK: vneg.s32
+;CHECK: vshl.s32
        %tmp1 = load <2 x i32>* %A
        %tmp2 = load <2 x i32>* %B
        %tmp3 = ashr <2 x i32> %tmp1, %tmp2
@@ -254,6 +318,9 @@ define <2 x i32> @vashrs32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
 }
 
 define <1 x i64> @vashrs64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
+;CHECK-LABEL: vashrs64:
+;CHECK: vsub.i64
+;CHECK: vshl.s64
        %tmp1 = load <1 x i64>* %A
        %tmp2 = load <1 x i64>* %B
        %tmp3 = ashr <1 x i64> %tmp1, %tmp2
@@ -261,30 +328,41 @@ define <1 x i64> @vashrs64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
 }
 
 define <8 x i8> @vashri8(<8 x i8>* %A) nounwind {
+;CHECK-LABEL: vashri8:
+;CHECK: vshr.s8
        %tmp1 = load <8 x i8>* %A
-       %tmp2 = ashr <8 x i8> %tmp1, < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
+       %tmp2 = ashr <8 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <8 x i8> %tmp2
 }
 
 define <4 x i16> @vashri16(<4 x i16>* %A) nounwind {
+;CHECK-LABEL: vashri16:
+;CHECK: vshr.s16
        %tmp1 = load <4 x i16>* %A
-       %tmp2 = ashr <4 x i16> %tmp1, < i16 16, i16 16, i16 16, i16 16 >
+       %tmp2 = ashr <4 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15 >
        ret <4 x i16> %tmp2
 }
 
 define <2 x i32> @vashri32(<2 x i32>* %A) nounwind {
+;CHECK-LABEL: vashri32:
+;CHECK: vshr.s32
        %tmp1 = load <2 x i32>* %A
-       %tmp2 = ashr <2 x i32> %tmp1, < i32 32, i32 32 >
+       %tmp2 = ashr <2 x i32> %tmp1, < i32 31, i32 31 >
        ret <2 x i32> %tmp2
 }
 
 define <1 x i64> @vashri64(<1 x i64>* %A) nounwind {
+;CHECK-LABEL: vashri64:
+;CHECK: vshr.s64
        %tmp1 = load <1 x i64>* %A
-       %tmp2 = ashr <1 x i64> %tmp1, < i64 64 >
+       %tmp2 = ashr <1 x i64> %tmp1, < i64 63 >
        ret <1 x i64> %tmp2
 }
 
 define <16 x i8> @vashrQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
+;CHECK-LABEL: vashrQs8:
+;CHECK: vneg.s8
+;CHECK: vshl.s8
        %tmp1 = load <16 x i8>* %A
        %tmp2 = load <16 x i8>* %B
        %tmp3 = ashr <16 x i8> %tmp1, %tmp2
@@ -292,6 +370,9 @@ define <16 x i8> @vashrQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
 }
 
 define <8 x i16> @vashrQs16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+;CHECK-LABEL: vashrQs16:
+;CHECK: vneg.s16
+;CHECK: vshl.s16
        %tmp1 = load <8 x i16>* %A
        %tmp2 = load <8 x i16>* %B
        %tmp3 = ashr <8 x i16> %tmp1, %tmp2
@@ -299,6 +380,9 @@ define <8 x i16> @vashrQs16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
 }
 
 define <4 x i32> @vashrQs32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+;CHECK-LABEL: vashrQs32:
+;CHECK: vneg.s32
+;CHECK: vshl.s32
        %tmp1 = load <4 x i32>* %A
        %tmp2 = load <4 x i32>* %B
        %tmp3 = ashr <4 x i32> %tmp1, %tmp2
@@ -306,6 +390,9 @@ define <4 x i32> @vashrQs32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
 }
 
 define <2 x i64> @vashrQs64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
+;CHECK-LABEL: vashrQs64:
+;CHECK: vsub.i64
+;CHECK: vshl.s64
        %tmp1 = load <2 x i64>* %A
        %tmp2 = load <2 x i64>* %B
        %tmp3 = ashr <2 x i64> %tmp1, %tmp2
@@ -313,25 +400,33 @@ define <2 x i64> @vashrQs64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
 }
 
 define <16 x i8> @vashrQi8(<16 x i8>* %A) nounwind {
+;CHECK-LABEL: vashrQi8:
+;CHECK: vshr.s8
        %tmp1 = load <16 x i8>* %A
-       %tmp2 = ashr <16 x i8> %tmp1, < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
+       %tmp2 = ashr <16 x i8> %tmp1, < i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7 >
        ret <16 x i8> %tmp2
 }
 
 define <8 x i16> @vashrQi16(<8 x i16>* %A) nounwind {
+;CHECK-LABEL: vashrQi16:
+;CHECK: vshr.s16
        %tmp1 = load <8 x i16>* %A
-       %tmp2 = ashr <8 x i16> %tmp1, < i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16 >
+       %tmp2 = ashr <8 x i16> %tmp1, < i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15 >
        ret <8 x i16> %tmp2
 }
 
 define <4 x i32> @vashrQi32(<4 x i32>* %A) nounwind {
+;CHECK-LABEL: vashrQi32:
+;CHECK: vshr.s32
        %tmp1 = load <4 x i32>* %A
-       %tmp2 = ashr <4 x i32> %tmp1, < i32 32, i32 32, i32 32, i32 32 >
+       %tmp2 = ashr <4 x i32> %tmp1, < i32 31, i32 31, i32 31, i32 31 >
        ret <4 x i32> %tmp2
 }
 
 define <2 x i64> @vashrQi64(<2 x i64>* %A) nounwind {
+;CHECK-LABEL: vashrQi64:
+;CHECK: vshr.s64
        %tmp1 = load <2 x i64>* %A
-       %tmp2 = ashr <2 x i64> %tmp1, < i64 64, i64 64 >
+       %tmp2 = ashr <2 x i64> %tmp1, < i64 63, i64 63 >
        ret <2 x i64> %tmp2
 }