1 ; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s 2 3 ; When loading the shift amount from memory, avoid generating the splat. 4 5 define void @shift5a(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind { 6 entry: 7 ; CHECK: shift5a: 8 ; CHECK: movd 9 ; CHECK-NEXT: pslld 10 %amt = load i32* %pamt 11 %tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0 12 %shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer 13 %shl = shl <4 x i32> %val, %shamt 14 store <4 x i32> %shl, <4 x i32>* %dst 15 ret void 16 } 17 18 19 define void @shift5b(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind { 20 entry: 21 ; CHECK: shift5b: 22 ; CHECK: movd 23 ; CHECK-NEXT: psrad 24 %amt = load i32* %pamt 25 %tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0 26 %shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer 27 %shr = ashr <4 x i32> %val, %shamt 28 store <4 x i32> %shr, <4 x i32>* %dst 29 ret void 30 } 31 32 33 define void @shift5c(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind { 34 entry: 35 ; CHECK: shift5c: 36 ; CHECK: movd 37 ; CHECK-NEXT: pslld 38 %tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0 39 %shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer 40 %shl = shl <4 x i32> %val, %shamt 41 store <4 x i32> %shl, <4 x i32>* %dst 42 ret void 43 } 44 45 46 define void @shift5d(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind { 47 entry: 48 ; CHECK: shift5d: 49 ; CHECK: movd 50 ; CHECK-NEXT: psrad 51 %tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0 52 %shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer 53 %shr = ashr <4 x i32> %val, %shamt 54 store <4 x i32> %shr, <4 x i32>* %dst 55 ret void 56 } 57
