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; Test some floating point casting cases
; RUN: opt < %s -instcombine -S | FileCheck %s
define i8 @test1() {
%x = fptoui float 2.550000e+02 to i8 ; <i8> [#uses=1]
ret i8 %x
; CHECK: ret i8 -1
}
define i8 @test2() {
%x = fptosi float -1.000000e+00 to i8 ; <i8> [#uses=1]
ret i8 %x
; CHECK: ret i8 -1
}
; CHECK: test3
define half @test3(float %a) {
; CHECK: fptrunc
; CHECK: llvm.fabs.f16
%b = call float @llvm.fabs.f32(float %a)
%c = fptrunc float %b to half
ret half %c
}
; CHECK: test4
define half @test4(float %a) {
; CHECK: fptrunc
; CHECK: fsub
%b = fsub float -0.0, %a
%c = fptrunc float %b to half
ret half %c
}
declare float @llvm.fabs.f32(float) nounwind readonly
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