xref: /llvm-project/llvm/test/Transforms/InstCombine/cabs-discrete.ll (revision e980990ee4ef0b2690094186cb4331e224561a20)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=instcombine -S | FileCheck %s
3
4define double @std_cabs(double %real, double %imag) {
5; CHECK-LABEL: @std_cabs(
6; CHECK-NEXT:    [[CALL:%.*]] = tail call double @cabs(double [[REAL:%.*]], double [[IMAG:%.*]])
7; CHECK-NEXT:    ret double [[CALL]]
8;
9  %call = tail call double @cabs(double %real, double %imag)
10  ret double %call
11}
12
13define float @std_cabsf(float %real, float %imag) {
14; CHECK-LABEL: @std_cabsf(
15; CHECK-NEXT:    [[CALL:%.*]] = tail call float @cabsf(float [[REAL:%.*]], float [[IMAG:%.*]])
16; CHECK-NEXT:    ret float [[CALL]]
17;
18  %call = tail call float @cabsf(float %real, float %imag)
19  ret float %call
20}
21
22define fp128 @std_cabsl(fp128 %real, fp128 %imag) {
23; CHECK-LABEL: @std_cabsl(
24; CHECK-NEXT:    [[CALL:%.*]] = tail call fp128 @cabsl(fp128 [[REAL:%.*]], fp128 [[IMAG:%.*]])
25; CHECK-NEXT:    ret fp128 [[CALL]]
26;
27  %call = tail call fp128 @cabsl(fp128 %real, fp128 %imag)
28  ret fp128 %call
29}
30
31define double @fast_cabs(double %real, double %imag) {
32; CHECK-LABEL: @fast_cabs(
33; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast double [[REAL:%.*]], [[REAL]]
34; CHECK-NEXT:    [[TMP2:%.*]] = fmul fast double [[IMAG:%.*]], [[IMAG]]
35; CHECK-NEXT:    [[TMP3:%.*]] = fadd fast double [[TMP1]], [[TMP2]]
36; CHECK-NEXT:    [[CABS:%.*]] = tail call fast double @llvm.sqrt.f64(double [[TMP3]])
37; CHECK-NEXT:    ret double [[CABS]]
38;
39  %call = tail call fast double @cabs(double %real, double %imag)
40  ret double %call
41}
42
43define double @cabs_zero_real(double %imag) {
44; CHECK-LABEL: @cabs_zero_real(
45; CHECK-NEXT:    [[CABS:%.*]] = tail call double @llvm.fabs.f64(double [[IMAG:%.*]])
46; CHECK-NEXT:    ret double [[CABS]]
47;
48  %call = tail call double @cabs(double 0.0, double %imag)
49  ret double %call
50}
51
52define double @fast_cabs_neg_zero_real(double %imag) {
53; CHECK-LABEL: @fast_cabs_neg_zero_real(
54; CHECK-NEXT:    [[CABS:%.*]] = tail call fast double @llvm.fabs.f64(double [[IMAG:%.*]])
55; CHECK-NEXT:    ret double [[CABS]]
56;
57  %call = tail call fast double @cabs(double -0.0, double %imag)
58  ret double %call
59}
60
61define double @cabs_zero_imag(double %real) {
62; CHECK-LABEL: @cabs_zero_imag(
63; CHECK-NEXT:    [[CABS:%.*]] = tail call double @llvm.fabs.f64(double [[REAL:%.*]])
64; CHECK-NEXT:    ret double [[CABS]]
65;
66  %call = tail call double @cabs(double %real, double 0.0)
67  ret double %call
68}
69
70define float @fast_cabsf(float %real, float %imag) {
71; CHECK-LABEL: @fast_cabsf(
72; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast float [[REAL:%.*]], [[REAL]]
73; CHECK-NEXT:    [[TMP2:%.*]] = fmul fast float [[IMAG:%.*]], [[IMAG]]
74; CHECK-NEXT:    [[TMP3:%.*]] = fadd fast float [[TMP1]], [[TMP2]]
75; CHECK-NEXT:    [[CABS:%.*]] = tail call fast float @llvm.sqrt.f32(float [[TMP3]])
76; CHECK-NEXT:    ret float [[CABS]]
77;
78  %call = tail call fast float @cabsf(float %real, float %imag)
79  ret float %call
80}
81
82define float @cabsf_zero_real(float %imag) {
83; CHECK-LABEL: @cabsf_zero_real(
84; CHECK-NEXT:    [[CABS:%.*]] = tail call float @llvm.fabs.f32(float [[IMAG:%.*]])
85; CHECK-NEXT:    ret float [[CABS]]
86;
87  %call = tail call float @cabsf(float 0.0, float %imag)
88  ret float %call
89}
90
91define float @fast_cabsf_neg_zero_real(float %imag) {
92; CHECK-LABEL: @fast_cabsf_neg_zero_real(
93; CHECK-NEXT:    [[CABS:%.*]] = tail call fast float @llvm.fabs.f32(float [[IMAG:%.*]])
94; CHECK-NEXT:    ret float [[CABS]]
95;
96  %call = tail call fast float @cabsf(float -0.0, float %imag)
97  ret float %call
98}
99
100define float @cabsf_zero_imag(float %real) {
101; CHECK-LABEL: @cabsf_zero_imag(
102; CHECK-NEXT:    [[CABS:%.*]] = tail call float @llvm.fabs.f32(float [[REAL:%.*]])
103; CHECK-NEXT:    ret float [[CABS]]
104;
105  %call = tail call float @cabsf(float %real, float 0.0)
106  ret float %call
107}
108
109define fp128 @fast_cabsl(fp128 %real, fp128 %imag) {
110; CHECK-LABEL: @fast_cabsl(
111; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast fp128 [[REAL:%.*]], [[REAL]]
112; CHECK-NEXT:    [[TMP2:%.*]] = fmul fast fp128 [[IMAG:%.*]], [[IMAG]]
113; CHECK-NEXT:    [[TMP3:%.*]] = fadd fast fp128 [[TMP1]], [[TMP2]]
114; CHECK-NEXT:    [[CABS:%.*]] = tail call fast fp128 @llvm.sqrt.f128(fp128 [[TMP3]])
115; CHECK-NEXT:    ret fp128 [[CABS]]
116;
117  %call = tail call fast fp128 @cabsl(fp128 %real, fp128 %imag)
118  ret fp128 %call
119}
120
121define fp128 @cabsl_zero_real(fp128 %imag) {
122; CHECK-LABEL: @cabsl_zero_real(
123; CHECK-NEXT:    [[CABS:%.*]] = tail call fp128 @llvm.fabs.f128(fp128 [[IMAG:%.*]])
124; CHECK-NEXT:    ret fp128 [[CABS]]
125;
126  %call = tail call fp128 @cabsl(fp128 0xL00000000000000000000000000000000, fp128 %imag)
127  ret fp128 %call
128}
129
130define fp128 @cabsl_zero_imag(fp128 %real) {
131; CHECK-LABEL: @cabsl_zero_imag(
132; CHECK-NEXT:    [[CABS:%.*]] = tail call fp128 @llvm.fabs.f128(fp128 [[REAL:%.*]])
133; CHECK-NEXT:    ret fp128 [[CABS]]
134;
135  %call = tail call fp128 @cabsl(fp128 %real, fp128 0xL00000000000000000000000000000000)
136  ret fp128 %call
137}
138
139define fp128 @fast_cabsl_neg_zero_imag(fp128 %real) {
140; CHECK-LABEL: @fast_cabsl_neg_zero_imag(
141; CHECK-NEXT:    [[CABS:%.*]] = tail call fast fp128 @llvm.fabs.f128(fp128 [[REAL:%.*]])
142; CHECK-NEXT:    ret fp128 [[CABS]]
143;
144  %call = tail call fast fp128 @cabsl(fp128 %real, fp128 0xL00000000000000008000000000000000)
145  ret fp128 %call
146}
147
148declare double @cabs(double %real, double %imag)
149declare float @cabsf(float %real, float %imag)
150declare fp128 @cabsl(fp128 %real, fp128 %imag)
151