forked from OSchip/llvm-project
13 lines
445 B
LLVM
13 lines
445 B
LLVM
|
; RUN: opt < %s -instcombine -S | grep zext
|
||
|
|
|
||
|
|
; Never merge these two conversions, even though it's possible: this is
|
||
|
|
; significantly more expensive than the two conversions on some targets
|
||
|
|
; and it causes libgcc to be compile __fixunsdfdi into a recursive
|
||
|
|
; function.
|
||
|
|
define i64 @test(double %D) {
|
||
|
|
%A = fptoui double %D to i32 ; <i32> [#uses=1]
|
||
|
|
%B = zext i32 %A to i64 ; <i64> [#uses=1]
|
||
|
|
ret i64 %B
|
||
|
|
}
|
||
|
|
|