1 ; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s 2 3 ; test vector shifts converted to proper SSE2 vector shifts when the shift 4 ; amounts are the same. 5 6 define void @shift1a(<2 x i64> %val, <2 x i64>* %dst) nounwind { 7 entry: 8 ; CHECK-LABEL: shift1a: 9 ; CHECK: psllq 10 %shl = shl <2 x i64> %val, < i64 32, i64 32 > 11 store <2 x i64> %shl, <2 x i64>* %dst 12 ret void 13 } 14 15 define void @shift1b(<2 x i64> %val, <2 x i64>* %dst, i64 %amt) nounwind { 16 entry: 17 ; CHECK-LABEL: shift1b: 18 ; CHECK: movd 19 ; CHECK: psllq 20 %0 = insertelement <2 x i64> undef, i64 %amt, i32 0 21 %1 = insertelement <2 x i64> %0, i64 %amt, i32 1 22 %shl = shl <2 x i64> %val, %1 23 store <2 x i64> %shl, <2 x i64>* %dst 24 ret void 25 } 26 27 28 define void @shift2a(<4 x i32> %val, <4 x i32>* %dst) nounwind { 29 entry: 30 ; CHECK-LABEL: shift2a: 31 ; CHECK: pslld 32 %shl = shl <4 x i32> %val, < i32 5, i32 5, i32 5, i32 5 > 33 store <4 x i32> %shl, <4 x i32>* %dst 34 ret void 35 } 36 37 define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind { 38 entry: 39 ; CHECK-LABEL: shift2b: 40 ; CHECK: movd 41 ; CHECK: pslld 42 %0 = insertelement <4 x i32> undef, i32 %amt, i32 0 43 %1 = insertelement <4 x i32> %0, i32 %amt, i32 1 44 %2 = insertelement <4 x i32> %1, i32 %amt, i32 2 45 %3 = insertelement <4 x i32> %2, i32 %amt, i32 3 46 %shl = shl <4 x i32> %val, %3 47 store <4 x i32> %shl, <4 x i32>* %dst 48 ret void 49 } 50 51 define void @shift3a(<8 x i16> %val, <8 x i16>* %dst) nounwind { 52 entry: 53 ; CHECK-LABEL: shift3a: 54 ; CHECK: psllw 55 %shl = shl <8 x i16> %val, < i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5 > 56 store <8 x i16> %shl, <8 x i16>* %dst 57 ret void 58 } 59 60 ; Make sure the shift amount is properly zero extended. 61 define void @shift3b(<8 x i16> %val, <8 x i16>* %dst, i16 %amt) nounwind { 62 entry: 63 ; CHECK-LABEL: shift3b: 64 ; CHECK: movzwl 65 ; CHECK: movd 66 ; CHECK-NEXT: psllw 67 %0 = insertelement <8 x i16> undef, i16 %amt, i32 0 68 %1 = insertelement <8 x i16> %0, i16 %amt, i32 1 69 %2 = insertelement <8 x i16> %1, i16 %amt, i32 2 70 %3 = insertelement <8 x i16> %2, i16 %amt, i32 3 71 %4 = insertelement <8 x i16> %3, i16 %amt, i32 4 72 %5 = insertelement <8 x i16> %4, i16 %amt, i32 5 73 %6 = insertelement <8 x i16> %5, i16 %amt, i32 6 74 %7 = insertelement <8 x i16> %6, i16 %amt, i32 7 75 %shl = shl <8 x i16> %val, %7 76 store <8 x i16> %shl, <8 x i16>* %dst 77 ret void 78 } 79 80
