mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
10ff0bbdfb
floating-point comparison, generate a mask of 0s or 1s, and generally DTRT with NaNs. Only profitable when the user wants a materialized 0 or 1 at runtime. rdar://problem/5993888 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132404 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
630 B
LLVM
22 lines
630 B
LLVM
; RUN: llc < %s -march=x86 | FileCheck %s
|
|
|
|
define zeroext i8 @t(double %x) nounwind readnone {
|
|
entry:
|
|
%0 = fptosi double %x to i32 ; <i32> [#uses=1]
|
|
%1 = sitofp i32 %0 to double ; <double> [#uses=1]
|
|
%2 = fcmp oeq double %1, %x ; <i1> [#uses=1]
|
|
%retval12 = zext i1 %2 to i8 ; <i8> [#uses=1]
|
|
; CHECK: cmpeqsd
|
|
ret i8 %retval12
|
|
}
|
|
|
|
define zeroext i8 @u(double %x) nounwind readnone {
|
|
entry:
|
|
%0 = fptosi double %x to i32 ; <i32> [#uses=1]
|
|
%1 = sitofp i32 %0 to double ; <double> [#uses=1]
|
|
%2 = fcmp une double %1, %x ; <i1> [#uses=1]
|
|
%retval12 = zext i1 %2 to i8 ; <i8> [#uses=1]
|
|
; CHECK: cmpneqsd
|
|
ret i8 %retval12
|
|
}
|