1; Test some floating point casting cases
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4define i8 @test1() {
5        %x = fptoui float 2.550000e+02 to i8            ; <i8> [#uses=1]
6        ret i8 %x
7; CHECK: ret i8 -1
8}
9
10define i8 @test2() {
11        %x = fptosi float -1.000000e+00 to i8           ; <i8> [#uses=1]
12        ret i8 %x
13; CHECK: ret i8 -1
14}
15
16; CHECK: test3
17define half @test3(float %a) {
18; CHECK: fptrunc
19; CHECK: llvm.fabs.f16
20  %b = call float @llvm.fabs.f32(float %a)
21  %c = fptrunc float %b to half
22  ret half %c
23}
24
25; CHECK: test4
26define half @test4(float %a) {
27; CHECK: fptrunc
28; CHECK: fsub
29  %b = fsub float -0.0, %a
30  %c = fptrunc float %b to half
31  ret half %c
32}
33
34; CHECK: test5
35define half @test5(float %a, float %b, float %c) {
36; CHECK: fcmp ogt
37; CHECK: fptrunc
38; CHECK: select
39; CHECK: half 0xH3C00
40  %d = fcmp ogt float %a, %b
41  %e = select i1 %d, float %c, float 1.0
42  %f = fptrunc float %e to half
43  ret half %f
44}
45
46declare float @llvm.fabs.f32(float) nounwind readonly
47