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7e501cf4c3
This update was done with the following bash script:
find test/CodeGen -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc.*debug" $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
sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
mv $TEMP $NAME
fi
done
llvm-svn: 186280
160 lines
3.5 KiB
LLVM
160 lines
3.5 KiB
LLVM
; Test 64-bit multiplication in which the second operand is constant.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check multiplication by 2, which should use shifts.
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define i64 @f1(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f1:
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; CHECK: sllg %r2, %r2, 1
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; CHECK: br %r14
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%mul = mul i64 %a, 2
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ret i64 %mul
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}
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; Check multiplication by 3.
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define i64 @f2(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f2:
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; CHECK: mghi %r2, 3
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; CHECK: br %r14
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%mul = mul i64 %a, 3
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ret i64 %mul
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}
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; Check the high end of the MGHI range.
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define i64 @f3(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f3:
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; CHECK: mghi %r2, 32767
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; CHECK: br %r14
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%mul = mul i64 %a, 32767
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ret i64 %mul
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}
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; Check the next value up, which should use shifts.
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define i64 @f4(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f4:
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; CHECK: sllg %r2, %r2, 15
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; CHECK: br %r14
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%mul = mul i64 %a, 32768
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ret i64 %mul
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}
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; Check the next value up again, which can use MSGFI.
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define i64 @f5(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f5:
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; CHECK: msgfi %r2, 32769
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; CHECK: br %r14
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%mul = mul i64 %a, 32769
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ret i64 %mul
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}
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; Check the high end of the MSGFI range.
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define i64 @f6(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f6:
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; CHECK: msgfi %r2, 2147483647
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; CHECK: br %r14
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%mul = mul i64 %a, 2147483647
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ret i64 %mul
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}
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; Check the next value up, which should use shifts.
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define i64 @f7(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f7:
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; CHECK: sllg %r2, %r2, 31
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; CHECK: br %r14
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%mul = mul i64 %a, 2147483648
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ret i64 %mul
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}
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; Check the next value up again, which cannot use a constant multiplicatoin.
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define i64 @f8(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f8:
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; CHECK-NOT: msgfi
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; CHECK: br %r14
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%mul = mul i64 %a, 2147483649
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ret i64 %mul
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}
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; Check multiplication by -1, which is a negation.
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define i64 @f9(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f9:
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; CHECK: lcgr {{%r[0-5]}}, %r2
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; CHECK: br %r14
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%mul = mul i64 %a, -1
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ret i64 %mul
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}
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; Check multiplication by -2, which should use shifts.
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define i64 @f10(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f10:
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; CHECK: sllg [[SHIFTED:%r[0-5]]], %r2, 1
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; CHECK: lcgr %r2, [[SHIFTED]]
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; CHECK: br %r14
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%mul = mul i64 %a, -2
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ret i64 %mul
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}
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; Check multiplication by -3.
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define i64 @f11(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f11:
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; CHECK: mghi %r2, -3
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; CHECK: br %r14
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%mul = mul i64 %a, -3
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ret i64 %mul
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}
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; Check the lowest useful MGHI value.
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define i64 @f12(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f12:
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; CHECK: mghi %r2, -32767
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; CHECK: br %r14
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%mul = mul i64 %a, -32767
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ret i64 %mul
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}
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; Check the next value down, which should use shifts.
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define i64 @f13(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f13:
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; CHECK: sllg [[SHIFTED:%r[0-5]]], %r2, 15
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; CHECK: lcgr %r2, [[SHIFTED]]
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; CHECK: br %r14
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%mul = mul i64 %a, -32768
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ret i64 %mul
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}
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; Check the next value down again, which can use MSGFI.
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define i64 @f14(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f14:
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; CHECK: msgfi %r2, -32769
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; CHECK: br %r14
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%mul = mul i64 %a, -32769
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ret i64 %mul
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}
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; Check the lowest useful MSGFI value.
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define i64 @f15(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f15:
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; CHECK: msgfi %r2, -2147483647
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; CHECK: br %r14
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%mul = mul i64 %a, -2147483647
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ret i64 %mul
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}
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; Check the next value down, which should use shifts.
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define i64 @f16(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f16:
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; CHECK: sllg [[SHIFTED:%r[0-5]]], %r2, 31
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; CHECK: lcgr %r2, [[SHIFTED]]
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; CHECK: br %r14
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%mul = mul i64 %a, -2147483648
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ret i64 %mul
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}
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; Check the next value down again, which cannot use constant multiplication
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define i64 @f17(i64 %a, i64 *%dest) {
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; CHECK-LABEL: f17:
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; CHECK-NOT: msgfi
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; CHECK: br %r14
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%mul = mul i64 %a, -2147483649
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ret i64 %mul
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}
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