1 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+mmx,+sse2 | FileCheck %s 2 3 %SA = type <{ %union.anon, i32, [4 x i8], i8*, i8*, i8*, i32, [4 x i8] }> 4 %union.anon = type { <1 x i64> } 5 6 ; Check that extra movd (copy) instructions aren't generated. 7 8 define i32 @test(%SA* %pSA, i16* %A, i32 %B, i32 %C, i32 %D, i8* %E) { 9 entry: 10 ; CHECK-LABEL: test 11 ; CHECK: # BB#0: 12 ; CHECK-NEXT: pshufw 13 ; CHECK-NEXT: movd 14 ; CHECK-NOT: movd 15 ; CHECK-NEXT: testl 16 %shl = shl i32 1, %B 17 %shl1 = shl i32 %C, %B 18 %shl2 = shl i32 1, %D 19 %v = getelementptr inbounds %SA, %SA* %pSA, i64 0, i32 0, i32 0 20 %v0 = load <1 x i64>, <1 x i64>* %v, align 8 21 %SA0 = getelementptr inbounds %SA, %SA* %pSA, i64 0, i32 1 22 %v1 = load i32, i32* %SA0, align 4 23 %SA1 = getelementptr inbounds %SA, %SA* %pSA, i64 0, i32 3 24 %v2 = load i8*, i8** %SA1, align 8 25 %SA2 = getelementptr inbounds %SA, %SA* %pSA, i64 0, i32 4 26 %v3 = load i8*, i8** %SA2, align 8 27 %v4 = bitcast <1 x i64> %v0 to <4 x i16> 28 %v5 = bitcast <4 x i16> %v4 to x86_mmx 29 %v6 = tail call x86_mmx @llvm.x86.sse.pshuf.w(x86_mmx %v5, i8 -18) 30 %v7 = bitcast x86_mmx %v6 to <4 x i16> 31 %v8 = bitcast <4 x i16> %v7 to <1 x i64> 32 %v9 = extractelement <1 x i64> %v8, i32 0 33 %v10 = bitcast i64 %v9 to <2 x i32> 34 %v11 = extractelement <2 x i32> %v10, i32 0 35 %cmp = icmp eq i32 %v11, 0 36 br i1 %cmp, label %if.A, label %if.B 37 38 if.A: 39 ; CHECK: %if.A 40 ; CHECK-NEXT: movd 41 ; CHECK-NEXT: psllq 42 %pa = phi <1 x i64> [ %v8, %entry ], [ %vx, %if.C ] 43 %v17 = extractelement <1 x i64> %pa, i32 0 44 %v18 = bitcast i64 %v17 to x86_mmx 45 %v19 = tail call x86_mmx @llvm.x86.mmx.pslli.q(x86_mmx %v18, i32 %B) #2 46 %v20 = bitcast x86_mmx %v19 to i64 47 %v21 = insertelement <1 x i64> undef, i64 %v20, i32 0 48 %cmp3 = icmp eq i64 %v20, 0 49 br i1 %cmp3, label %if.C, label %merge 50 51 if.B: 52 %v34 = bitcast <1 x i64> %v8 to <4 x i16> 53 %v35 = bitcast <4 x i16> %v34 to x86_mmx 54 %v36 = tail call x86_mmx @llvm.x86.sse.pshuf.w(x86_mmx %v35, i8 -18) 55 %v37 = bitcast x86_mmx %v36 to <4 x i16> 56 %v38 = bitcast <4 x i16> %v37 to <1 x i64> 57 br label %if.C 58 59 if.C: 60 %vx = phi <1 x i64> [ %v21, %if.A ], [ %v38, %if.B ] 61 %cvt = bitcast <1 x i64> %vx to <2 x i32> 62 %ex = extractelement <2 x i32> %cvt, i32 0 63 %cmp2 = icmp eq i32 %ex, 0 64 br i1 %cmp2, label %if.A, label %merge 65 66 merge: 67 ; CHECK: %merge 68 ; CHECK-NOT: movd 69 ; CHECK-NEXT: pshufw 70 %vy = phi <1 x i64> [ %v21, %if.A ], [ %vx, %if.C ] 71 %v130 = bitcast <1 x i64> %vy to <4 x i16> 72 %v131 = bitcast <4 x i16> %v130 to x86_mmx 73 %v132 = tail call x86_mmx @llvm.x86.sse.pshuf.w(x86_mmx %v131, i8 -18) 74 %v133 = bitcast x86_mmx %v132 to <4 x i16> 75 %v134 = bitcast <4 x i16> %v133 to <1 x i64> 76 %v135 = extractelement <1 x i64> %v134, i32 0 77 %v136 = bitcast i64 %v135 to <2 x i32> 78 %v137 = extractelement <2 x i32> %v136, i32 0 79 ret i32 %v137 80 } 81 82 83 declare x86_mmx @llvm.x86.sse.pshuf.w(x86_mmx, i8) 84 declare x86_mmx @llvm.x86.mmx.pslli.q(x86_mmx, i32) 85
