mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-28 15:33:16 +00:00
39f4e8d9cc
This update was done with the following bash script:
find test/Transforms -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
2.5 KiB
LLVM
108 lines
2.5 KiB
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
|
|
|
|
;; x * 0 ==> 0 when no-nans and no-signed-zero
|
|
; CHECK: mul_zero_1
|
|
define float @mul_zero_1(float %a) {
|
|
%b = fmul nsz nnan float %a, 0.0
|
|
; CHECK: ret float 0.0
|
|
ret float %b
|
|
}
|
|
; CHECK: mul_zero_2
|
|
define float @mul_zero_2(float %a) {
|
|
%b = fmul fast float 0.0, %a
|
|
; CHECK: ret float 0.0
|
|
ret float %b
|
|
}
|
|
|
|
;; x * 0 =/=> 0 when there could be nans or -0
|
|
; CHECK: no_mul_zero_1
|
|
define float @no_mul_zero_1(float %a) {
|
|
%b = fmul nsz float %a, 0.0
|
|
; CHECK: ret float %b
|
|
ret float %b
|
|
}
|
|
; CHECK: no_mul_zero_2
|
|
define float @no_mul_zero_2(float %a) {
|
|
%b = fmul nnan float %a, 0.0
|
|
; CHECK: ret float %b
|
|
ret float %b
|
|
}
|
|
; CHECK: no_mul_zero_3
|
|
define float @no_mul_zero_3(float %a) {
|
|
%b = fmul float %a, 0.0
|
|
; CHECK: ret float %b
|
|
ret float %b
|
|
}
|
|
|
|
; fadd [nnan ninf] X, (fsub [nnan ninf] 0, X) ==> 0
|
|
; where nnan and ninf have to occur at least once somewhere in this
|
|
; expression
|
|
; CHECK: fadd_fsub_0
|
|
define float @fadd_fsub_0(float %a) {
|
|
; X + -X ==> 0
|
|
%t1 = fsub nnan ninf float 0.0, %a
|
|
%zero1 = fadd nnan ninf float %t1, %a
|
|
|
|
%t2 = fsub nnan float 0.0, %a
|
|
%zero2 = fadd ninf float %t2, %a
|
|
|
|
%t3 = fsub nnan ninf float 0.0, %a
|
|
%zero3 = fadd float %t3, %a
|
|
|
|
%t4 = fsub float 0.0, %a
|
|
%zero4 = fadd nnan ninf float %t4, %a
|
|
|
|
; Dont fold this
|
|
; CHECK: %nofold = fsub float 0.0
|
|
%nofold = fsub float 0.0, %a
|
|
; CHECK: %no_zero = fadd nnan float %nofold, %a
|
|
%no_zero = fadd nnan float %nofold, %a
|
|
|
|
; Coalesce the folded zeros
|
|
%zero5 = fadd float %zero1, %zero2
|
|
%zero6 = fadd float %zero3, %zero4
|
|
%zero7 = fadd float %zero5, %zero6
|
|
|
|
; Should get folded
|
|
%ret = fadd nsz float %no_zero, %zero7
|
|
|
|
; CHECK: ret float %no_zero
|
|
ret float %ret
|
|
}
|
|
|
|
; fsub nnan ninf x, x ==> 0.0
|
|
; CHECK-LABEL: @fsub_x_x(
|
|
define float @fsub_x_x(float %a) {
|
|
; X - X ==> 0
|
|
%zero1 = fsub nnan ninf float %a, %a
|
|
|
|
; Dont fold
|
|
; CHECK: %no_zero1 = fsub
|
|
%no_zero1 = fsub ninf float %a, %a
|
|
; CHECK: %no_zero2 = fsub
|
|
%no_zero2 = fsub nnan float %a, %a
|
|
; CHECK: %no_zero = fadd
|
|
%no_zero = fadd float %no_zero1, %no_zero2
|
|
|
|
; Should get folded
|
|
%ret = fadd nsz float %no_zero, %zero1
|
|
|
|
; CHECK: ret float %no_zero
|
|
ret float %ret
|
|
}
|
|
|
|
; fadd nsz X, 0 ==> X
|
|
; CHECK-LABEL: @nofold_fadd_x_0(
|
|
define float @nofold_fadd_x_0(float %a) {
|
|
; Dont fold
|
|
; CHECK: %no_zero1 = fadd
|
|
%no_zero1 = fadd ninf float %a, 0.0
|
|
; CHECK: %no_zero2 = fadd
|
|
%no_zero2 = fadd nnan float %a, 0.0
|
|
; CHECK: %no_zero = fadd
|
|
%no_zero = fadd float %no_zero1, %no_zero2
|
|
|
|
; CHECK: ret float %no_zero
|
|
ret float %no_zero
|
|
}
|