1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -instcombine -S < %s | FileCheck %s 3 4define void @scalarize_phi(i32 * %n, float * %inout) { 5; CHECK-LABEL: @scalarize_phi( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[T0:%.*]] = load volatile float, float* [[INOUT:%.*]], align 4 8; CHECK-NEXT: br label [[FOR_COND:%.*]] 9; CHECK: for.cond: 10; CHECK-NEXT: [[TMP0:%.*]] = phi float [ [[T0]], [[ENTRY:%.*]] ], [ [[TMP1:%.*]], [[FOR_BODY:%.*]] ] 11; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 12; CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[N:%.*]], align 4 13; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[I_0]], [[T1]] 14; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END:%.*]], label [[FOR_BODY]] 15; CHECK: for.body: 16; CHECK-NEXT: store volatile float [[TMP0]], float* [[INOUT]], align 4 17; CHECK-NEXT: [[TMP1]] = fmul float [[TMP0]], 0x4002A3D700000000 18; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1 19; CHECK-NEXT: br label [[FOR_COND]] 20; CHECK: for.end: 21; CHECK-NEXT: ret void 22; 23entry: 24 %t0 = load volatile float, float * %inout, align 4 25 %insert = insertelement <4 x float> undef, float %t0, i32 0 26 %splat = shufflevector <4 x float> %insert, <4 x float> undef, <4 x i32> zeroinitializer 27 %insert1 = insertelement <4 x float> undef, float 3.0, i32 0 28 br label %for.cond 29 30for.cond: 31 %x.0 = phi <4 x float> [ %splat, %entry ], [ %mul, %for.body ] 32 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 33 %t1 = load i32, i32 * %n, align 4 34 %cmp = icmp ne i32 %i.0, %t1 35 br i1 %cmp, label %for.body, label %for.end 36 37for.body: 38 %t2 = extractelement <4 x float> %x.0, i32 1 39 store volatile float %t2, float * %inout, align 4 40 %mul = fmul <4 x float> %x.0, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000> 41 %inc = add nsw i32 %i.0, 1 42 br label %for.cond 43 44for.end: 45 ret void 46} 47 48define float @extract_element_constant_index(<4 x float> %x) { 49; CHECK-LABEL: @extract_element_constant_index( 50; CHECK-NEXT: [[R_LHS:%.*]] = extractelement <4 x float> [[X:%.*]], i32 2 51; CHECK-NEXT: [[R:%.*]] = fadd float [[R_LHS]], 0x4002A3D700000000 52; CHECK-NEXT: ret float [[R]] 53; 54 %add = fadd <4 x float> %x, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000> 55 %r = extractelement <4 x float> %add, i32 2 56 ret float %r 57} 58 59