blob: 594594abd7d14b30425b0b644d900c8f9383d38a (
plain) (
blame)
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
|
; RUN: opt < %s -instcombine -S | FileCheck %s
define double @pow_exp(double %x, double %y) {
%call = call fast double @exp(double %x) nounwind readnone
%pow = call fast double @llvm.pow.f64(double %call, double %y)
ret double %pow
}
; CHECK-LABEL: define double @pow_exp(
; CHECK-NEXT: %mul = fmul fast double %x, %y
; CHECK-NEXT: %exp = call fast double @exp(double %mul)
; CHECK-NEXT: ret double %exp
define double @pow_exp2(double %x, double %y) {
%call = call fast double @exp2(double %x) nounwind readnone
%pow = call fast double @llvm.pow.f64(double %call, double %y)
ret double %pow
}
; CHECK-LABEL: define double @pow_exp2(
; CHECK-NEXT: %mul = fmul fast double %x, %y
; CHECK-NEXT: %exp2 = call fast double @exp2(double %mul)
; CHECK-NEXT: ret double %exp2
define double @pow_exp_not_fast(double %x, double %y) {
%call = call double @exp(double %x)
%pow = call fast double @llvm.pow.f64(double %call, double %y)
ret double %pow
}
; CHECK-LABEL: define double @pow_exp_not_fast(
; CHECK-NEXT: %call = call double @exp(double %x)
; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call, double %y)
; CHECK-NEXT: ret double %pow
define double @function_pointer(double ()* %fptr, double %p1) {
%call1 = call fast double %fptr()
%pow = call fast double @llvm.pow.f64(double %call1, double %p1)
ret double %pow
}
; CHECK-LABEL: @function_pointer
; CHECK-NEXT: %call1 = call fast double %fptr()
; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call1, double %p1)
declare double @exp(double)
declare double @exp2(double)
declare double @llvm.pow.f64(double, double)
|
