Summary:
The accumulator-based (HI/LO) multiplies and divides from earlier ISA's have
been removed and replaced with GPR-based equivalents. For example:
div $1, $2
mflo $3
is now:
div $3, $1, $2
This patch disables the accumulator-based multiplies and divides for
MIPS32r6/MIPS64r6 and uses the GPR-based equivalents instead.
Renamed expandPseudoDiv to insertDivByZeroTrap to better describe the
behaviour of the function.
MipsDelaySlotFiller now invalidates the liveness information when moving
instructions to the delay slot. Without this, divrem.ll will abort since
%GP ends up used before it is defined.
Reviewers: vmedic, zoran.jovanovic, jkolek
Reviewed By: jkolek
Differential Revision: http://reviews.llvm.org/D3896
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210760 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
MIPS32r6/MIPS64r6 support has not been added yet.
inlineasm-cnstrnt-reg.ll:
Explicitly specify the CPU since it will not work on MIPS32r6/MIPS64r6
when -integrated-as is the default. We can't change the mnemonic since the
LO register is an implicit def of mtlo and MIPS32r6/MIPS64r6 has no
instructions that use LO.
2008-08-01-AsmInline.ll:
Explicitly specify the CPU since MIPS32r6/MIPS64r6 will correctly emit
different code and this is a regression test.
mips64instrs.ll and mips64muldiv.ll
Check registers and the way the multiply is used in m1
divrem.ll
Check registers and use multiple filecheck prefixes to limit redundancy
Reviewers: vmedic, jkolek, zoran.jovanovic, matheusalmeida
Reviewed By: matheusalmeida
Subscribers: matheusalmeida
Differential Revision: http://reviews.llvm.org/D3894
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210656 91177308-0d34-0410-b5e6-96231b3b80d8
This update was done with the following bash script:
find test/CodeGen -name "*.ll" | \
while read NAME; do
echo "$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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
By default, a teq instruction is inserted after integer divide. No divide-by-zero
checks are performed if option "-mnocheck-zero-division" is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182306 91177308-0d34-0410-b5e6-96231b3b80d8
