1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
; RUN: opt < %s -instcombine -S | FileCheck %s
; CHECK-LABEL: @zero(
; CHECK-NEXT: ret double 1.000000e+00
define double @zero(double %value) {
%res = call double @llvm.pow.f64(double %value, double 0.000000e+00)
ret double %res
}
; CHECK-LABEL: @minus_zero(
; CHECK-NEXT: ret double 1.000000e+00
define double @minus_zero(double %value) {
%res = call double @llvm.pow.f64(double %value, double -0.000000e+00)
ret double %res
}
; CHECK-LABEL: @fast_zero(
; CHECK-NEXT: ret double 1.000000e+00
define double @fast_zero(double %value) {
%res = call fast double @llvm.pow.f64(double %value, double 0.000000e+00)
ret double %res
}
; CHECK-LABEL: @fast_minus_zero(
; CHECK-NEXT: ret double 1.000000e+00
define double @fast_minus_zero(double %value) {
%res = call fast double @llvm.pow.f64(double %value, double -0.000000e+00)
ret double %res
}
; CHECK-LABEL: @vec_zero(
; CHECK-NEXT: ret <2 x double> <double 1.000000e+00, double 1.000000e+00>
define <2 x double> @vec_zero(<2 x double> %value) {
%res = call <2 x double> @llvm.pow.v2f64(<2 x double> %value, <2 x double> <double 0.000000e+00, double 0.000000e+00>)
ret <2 x double> %res
}
; CHECK-LABEL: @vec_minus_zero(
; CHECK-NEXT: ret <2 x double> <double 1.000000e+00, double 1.000000e+00>
define <2 x double> @vec_minus_zero(<2 x double> %value) {
%res = call <2 x double> @llvm.pow.v2f64(<2 x double> %value, <2 x double> <double -0.000000e+00, double -0.000000e+00>)
ret <2 x double> %res
}
; CHECK-LABEL: @vec_fast_zero(
; CHECK-NEXT: ret <2 x double> <double 1.000000e+00, double 1.000000e+00>
define <2 x double> @vec_fast_zero(<2 x double> %value) {
%res = call fast <2 x double> @llvm.pow.v2f64(<2 x double> %value, <2 x double> <double 0.000000e+00, double 0.000000e+00>)
ret <2 x double> %res
}
; CHECK-LABEL: @vec_fast_minus_zero(
; CHECK-NEXT: ret <2 x double> <double 1.000000e+00, double 1.000000e+00>
define <2 x double> @vec_fast_minus_zero(<2 x double> %value) {
%res = call fast <2 x double> @llvm.pow.v2f64(<2 x double> %value, <2 x double> <double -0.000000e+00, double -0.000000e+00>)
ret <2 x double> %res
}
declare double @llvm.pow.f64(double, double)
declare <2 x double> @llvm.pow.v2f64(<2 x double>, <2 x double>)
|
