33 lines
893 B
LLVM
33 lines
893 B
LLVM
|
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mcpu=x86-64 < %s | FileCheck %s
|
||
|
|
|
||
|
|
; Make sure the float conversion is folded away as it should be.
|
||
|
|
; CHECK-LABEL: foo
|
||
|
|
; CHECK-NOT: cvt
|
||
|
|
; CHECK: movzbl
|
||
|
|
define i32 @foo(i8 %a) #0 {
|
||
|
|
%conv = uitofp i8 %a to float
|
||
|
|
%conv1 = fptosi float %conv to i32
|
||
|
|
ret i32 %conv1
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: foo2
|
||
|
|
; CHECK-NOT: cvt
|
||
|
|
; CHECK: movsbl
|
||
|
|
define i32 @foo2(i8 %a) #0 {
|
||
|
|
%conv = sitofp i8 %a to float
|
||
|
|
%conv1 = fptosi float %conv to i32
|
||
|
|
ret i32 %conv1
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: bar
|
||
|
|
; CHECK-NOT: cvt
|
||
|
|
; CHECK: movl
|
||
|
|
define zeroext i8 @bar(i8 zeroext %a) #0 {
|
||
|
|
%conv = uitofp i8 %a to float
|
||
|
|
%conv1 = fptoui float %conv to i8
|
||
|
|
ret i8 %conv1
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
||
|
|
|