mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-28 18:56:06 +00:00
09dd4d870e
This doesn't make sense as an option. fneg and fabs are bit preserving by definition. If a target has some fneg or fabs instruction that are not bitpreserving it's incorrect to lower fneg/fabs to use it.
25 lines
589 B
LLVM
25 lines
589 B
LLVM
; RUN: llc -verify-machineinstrs -ppc-asm-full-reg-names < %s -mattr=-vsx -mtriple=powerpc-unknown-linux-gnu | FileCheck %s
|
|
|
|
define double @fabs(double %f) {
|
|
; CHECK-LABEL: fabs:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: fabs f1, f1
|
|
; CHECK-NEXT: blr
|
|
;
|
|
%t = tail call double @fabs( double %f ) readnone
|
|
ret double %t
|
|
}
|
|
|
|
define float @bitcast_fabs(float %x) {
|
|
; CHECK-LABEL: bitcast_fabs:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: fabs f1, f1
|
|
; CHECK-NEXT: blr
|
|
;
|
|
%bc1 = bitcast float %x to i32
|
|
%and = and i32 %bc1, 2147483647
|
|
%bc2 = bitcast i32 %and to float
|
|
ret float %bc2
|
|
}
|
|
|