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
|
; RUN: opt -S -instcombine < %s | FileCheck %s
declare float @llvm.fma.f32(float, float, float) #0
declare float @llvm.fmuladd.f32(float, float, float) #0
declare <4 x float> @llvm.fma.v4f32(<4 x float>, <4 x float>, <4 x float>) #0
declare double @llvm.fma.f64(double, double, double) #0
declare double @llvm.fmuladd.f64(double, double, double) #0
declare double @llvm.sqrt.f64(double) #0
; CHECK-LABEL: @constant_fold_fma_f32
; CHECK-NEXT: ret float 6.000000e+00
define float @constant_fold_fma_f32() #0 {
%x = call float @llvm.fma.f32(float 1.0, float 2.0, float 4.0) #0
ret float %x
}
; CHECK-LABEL: @constant_fold_fma_v4f32
; CHECK-NEXT: ret <4 x float> <float 1.200000e+01, float 1.400000e+01, float 1.600000e+01, float 1.800000e+01>
define <4 x float> @constant_fold_fma_v4f32() #0 {
%x = call <4 x float> @llvm.fma.v4f32(<4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, <4 x float> <float 2.0, float 2.0, float 2.0, float 2.0>, <4 x float> <float 10.0, float 10.0, float 10.0, float 10.0>)
ret <4 x float> %x
}
; CHECK-LABEL: @constant_fold_fmuladd_f32
; CHECK-NEXT: ret float 6.000000e+00
define float @constant_fold_fmuladd_f32() #0 {
%x = call float @llvm.fmuladd.f32(float 1.0, float 2.0, float 4.0) #0
ret float %x
}
; CHECK-LABEL: @constant_fold_fma_f64
; CHECK-NEXT: ret double 6.000000e+00
define double @constant_fold_fma_f64() #0 {
%x = call double @llvm.fma.f64(double 1.0, double 2.0, double 4.0) #0
ret double %x
}
; CHECK-LABEL: @constant_fold_fmuladd_f64
; CHECK-NEXT: ret double 6.000000e+00
define double @constant_fold_fmuladd_f64() #0 {
%x = call double @llvm.fmuladd.f64(double 1.0, double 2.0, double 4.0) #0
ret double %x
}
; The sqrt intrinsic is undefined for negative inputs besides -0.0.
; CHECK-LABEL: @bad_sqrt
; CHECK-NEXT: ret double undef
define double @bad_sqrt() {
%x = call double @llvm.sqrt.f64(double -2.000000e+00)
ret double %x
}
attributes #0 = { nounwind readnone }
|
