mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 21:32:10 +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
33 lines
681 B
LLVM
33 lines
681 B
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
|
|
|
|
; Check that code corresponding to the following C function is
|
|
; simplified into a single ASR operation:
|
|
;
|
|
; int test_asr(int a, int b) {
|
|
; return a < 0 ? -(-a - 1 >> b) - 1 : a >> b;
|
|
; }
|
|
;
|
|
define i32 @test_asr(i32 %a, i32 %b) {
|
|
entry:
|
|
%c = icmp slt i32 %a, 0
|
|
br i1 %c, label %bb2, label %bb3
|
|
|
|
bb2:
|
|
%t1 = sub i32 0, %a
|
|
%not = sub i32 %t1, 1
|
|
%d = ashr i32 %not, %b
|
|
%t2 = sub i32 0, %d
|
|
%not2 = sub i32 %t2, 1
|
|
br label %bb4
|
|
bb3:
|
|
%e = ashr i32 %a, %b
|
|
br label %bb4
|
|
bb4:
|
|
%f = phi i32 [ %not2, %bb2 ], [ %e, %bb3 ]
|
|
ret i32 %f
|
|
; CHECK-LABEL: @test_asr(
|
|
; CHECK: bb4:
|
|
; CHECK: %f = ashr i32 %a, %b
|
|
; CHECK: ret i32 %f
|
|
}
|