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use FileCheck; add test for disguised fabs 

llvm-svn: 267051
This commit is contained in:
Sanjay Patel 2016-04-21 20:58:58 +00:00
parent ba2d1c0250
commit 95590f4b7b
1 changed files with 27 additions and 4 deletions
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31
llvm/test/CodeGen/PowerPC/fabs.ll
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@ -1,7 +1,30 @@
; RUN: llc < %s -mattr=-vsx -march=ppc32 -mtriple=powerpc-apple-darwin | grep "fabs f1, f1"
; RUN: llc < %s -mattr=-vsx -march=ppc32 -mtriple=powerpc-apple-darwin | FileCheck %s
define double @fabs(double %f) {
entry:
%tmp2 = tail call double @fabs( double %f ) readnone ; <double> [#uses=1]
ret double %tmp2
; 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: stfs f1, -8(r1)
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: lwz r2, -8(r1)
; CHECK-NEXT: clrlwi r2, r2, 1
; CHECK-NEXT: stw r2, -4(r1)
; CHECK-NEXT: lfs f1, -4(r1)
; CHECK-NEXT: blr
;
%bc1 = bitcast float %x to i32
%and = and i32 %bc1, 2147483647
%bc2 = bitcast i32 %and to float
ret float %bc2
}