| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| %"struct.std::complex" = type { { float, float } } |
| @dd = external global %"struct.std::complex", align 4 |
| @dd2 = external global %"struct.std::complex", align 4 |
| |
| define void @_Z3fooi(i32 signext %n) { |
| ; CHECK-LABEL: @_Z3fooi( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_COND:%.*]] |
| ; CHECK: for.cond: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi float [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[ADD_I:%.*]], [[FOR_BODY:%.*]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi float [ 0.000000e+00, [[ENTRY]] ], [ [[ADD4_I:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[I_0]], [[N:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[TMP2:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: [[TMP3:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: [[TMP4:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: [[TMP5:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[TMP2]], [[TMP4]] |
| ; CHECK-NEXT: [[MUL4_I:%.*]] = fmul float [[TMP3]], [[TMP5]] |
| ; CHECK-NEXT: [[SUB_I:%.*]] = fsub float [[MUL_I]], [[MUL4_I]] |
| ; CHECK-NEXT: [[MUL5_I:%.*]] = fmul float [[TMP3]], [[TMP4]] |
| ; CHECK-NEXT: [[MUL6_I:%.*]] = fmul float [[TMP2]], [[TMP5]] |
| ; CHECK-NEXT: [[ADD_I4:%.*]] = fadd float [[MUL5_I]], [[MUL6_I]] |
| ; CHECK-NEXT: [[ADD_I]] = fadd float [[SUB_I]], [[TMP0]] |
| ; CHECK-NEXT: [[ADD4_I]] = fadd float [[ADD_I4]], [[TMP1]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1 |
| ; CHECK-NEXT: br label [[FOR_COND]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: store float [[TMP0]], float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: store float [[TMP1]], float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for.cond |
| |
| for.cond: |
| %ldd.sroa.0.0 = phi i32 [ 0, %entry ], [ %5, %for.body ] |
| %ldd.sroa.6.0 = phi i32 [ 0, %entry ], [ %7, %for.body ] |
| %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %cmp = icmp slt i32 %i.0, %n |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.body: |
| %0 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| %1 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1), align 4 |
| %2 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 0), align 4 |
| %3 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 1), align 4 |
| %mul.i = fmul float %0, %2 |
| %mul4.i = fmul float %1, %3 |
| %sub.i = fsub float %mul.i, %mul4.i |
| %mul5.i = fmul float %1, %2 |
| %mul6.i = fmul float %0, %3 |
| %add.i4 = fadd float %mul5.i, %mul6.i |
| %4 = bitcast i32 %ldd.sroa.0.0 to float |
| %add.i = fadd float %sub.i, %4 |
| %5 = bitcast float %add.i to i32 |
| %6 = bitcast i32 %ldd.sroa.6.0 to float |
| %add4.i = fadd float %add.i4, %6 |
| %7 = bitcast float %add4.i to i32 |
| %inc = add nsw i32 %i.0, 1 |
| br label %for.cond |
| |
| for.end: |
| store i32 %ldd.sroa.0.0, i32* bitcast (%"struct.std::complex"* @dd to i32*), align 4 |
| store i32 %ldd.sroa.6.0, i32* bitcast (float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1) to i32*), align 4 |
| ret void |
| |
| } |
| |
| |
| define void @multi_phi(i32 signext %n) { |
| ; CHECK-LABEL: @multi_phi( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_COND:%.*]] |
| ; CHECK: for.cond: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi float [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[TMP6:%.*]], [[ODD_BB:%.*]] ] |
| ; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[ODD_BB]] ] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[I_0]], [[N:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[TMP1:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: [[TMP2:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: [[TMP3:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: [[TMP4:%.*]] = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 1), align 4 |
| ; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[TMP1]], [[TMP3]] |
| ; CHECK-NEXT: [[MUL4_I:%.*]] = fmul float [[TMP2]], [[TMP4]] |
| ; CHECK-NEXT: [[SUB_I:%.*]] = fsub float [[MUL_I]], [[MUL4_I]] |
| ; CHECK-NEXT: [[ADD_I:%.*]] = fadd float [[SUB_I]], [[TMP0]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1 |
| ; CHECK-NEXT: [[BIT0:%.*]] = and i32 [[INC]], 1 |
| ; CHECK-NEXT: [[EVEN:%.*]] = icmp eq i32 [[BIT0]], 0 |
| ; CHECK-NEXT: br i1 [[EVEN]], label [[EVEN_BB:%.*]], label [[ODD_BB]] |
| ; CHECK: even.bb: |
| ; CHECK-NEXT: [[TMP5:%.*]] = fadd float [[SUB_I]], [[ADD_I]] |
| ; CHECK-NEXT: br label [[ODD_BB]] |
| ; CHECK: odd.bb: |
| ; CHECK-NEXT: [[TMP6]] = phi float [ [[ADD_I]], [[FOR_BODY]] ], [ [[TMP5]], [[EVEN_BB]] ] |
| ; CHECK-NEXT: br label [[FOR_COND]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: store float [[TMP0]], float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for.cond |
| |
| for.cond: |
| %ldd.sroa.0.0 = phi i32 [ 0, %entry ], [ %9, %odd.bb ] |
| %i.0 = phi i32 [ 0, %entry ], [ %inc, %odd.bb ] |
| %cmp = icmp slt i32 %i.0, %n |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.body: |
| %0 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 0), align 4 |
| %1 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd, i64 0, i32 0, i32 1), align 4 |
| %2 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 0), align 4 |
| %3 = load float, float* getelementptr inbounds (%"struct.std::complex", %"struct.std::complex"* @dd2, i64 0, i32 0, i32 1), align 4 |
| %mul.i = fmul float %0, %2 |
| %mul4.i = fmul float %1, %3 |
| %sub.i = fsub float %mul.i, %mul4.i |
| %4 = bitcast i32 %ldd.sroa.0.0 to float |
| %add.i = fadd float %sub.i, %4 |
| %5 = bitcast float %add.i to i32 |
| %inc = add nsw i32 %i.0, 1 |
| %bit0 = and i32 %inc, 1 |
| %even = icmp slt i32 %bit0, 1 |
| br i1 %even, label %even.bb, label %odd.bb |
| |
| even.bb: |
| %6 = bitcast i32 %5 to float |
| %7 = fadd float %sub.i, %6 |
| %8 = bitcast float %7 to i32 |
| br label %odd.bb |
| |
| odd.bb: |
| %9 = phi i32 [ %5, %for.body ], [ %8, %even.bb ] |
| br label %for.cond |
| |
| for.end: |
| store i32 %ldd.sroa.0.0, i32* bitcast (%"struct.std::complex"* @dd to i32*), align 4 |
| ret void |
| |
| } |