..
2002-03-11-InstCombineHang.ll
2002-05-14-SubFailure.ll
2002-08-02-CastTest.ll
2002-12-05-MissedConstProp.ll
2003-05-26-CastMiscompile.ll
2003-05-27-ConstExprCrash.ll
2003-06-05-BranchInvertInfLoop.ll
2003-07-21-ExternalConstant.ll
2003-08-12-AllocaNonNull.ll
2003-09-09-VolatileLoadElim.ll
2003-10-29-CallSiteResolve.ll
2003-11-03-VarargsCallBug.ll
2004-01-13-InstCombineInvokePHI.ll
2004-02-23-ShiftShiftOverflow.ll
2004-03-13-InstCombineInfLoop.ll
2004-04-04-InstCombineReplaceAllUsesWith.ll
2004-05-07-UnsizedCastLoad.ll
2004-07-27-ConstantExprMul.ll
2004-08-09-RemInfLoop.ll
2004-08-10-BoolSetCC.ll
2004-09-20-BadLoadCombine2.ll
2004-09-20-BadLoadCombine.ll
2004-09-28-BadShiftAndSetCC.ll
2004-11-22-Missed-and-fold.ll
2004-11-27-SetCCForCastLargerAndConstant.ll
2004-12-08-RemInfiniteLoop.ll
2005-03-04-ShiftOverflow.ll
2005-04-07-UDivSelectCrash.ll
2005-06-15-DivSelectCrash.ll
2005-06-15-ShiftSetCCCrash.ll
2005-06-16-RangeCrash.ll
2005-06-16-SetCCOrSetCCMiscompile.ll
2005-07-07-DeadPHILoop.ll
2006-02-13-DemandedMiscompile.ll
2006-02-28-Crash.ll
2006-03-30-ExtractElement.ll
2006-04-28-ShiftShiftLongLong.ll
2006-05-04-DemandedBitCrash.ll
2006-09-15-CastToBool.ll
2006-10-19-SignedToUnsignedCastAndConst-2.ll
2006-10-20-mask.ll
2006-10-26-VectorReassoc.ll
2006-11-10-ashr-miscompile.ll
2006-12-01-BadFPVectorXform.ll
2006-12-05-fp-to-int-ext.ll
2006-12-08-Phi-ICmp-Op-Fold.ll
2006-12-08-Select-ICmp.ll
2006-12-15-Range-Test.ll
2006-12-23-Select-Cmp-Cmp.ll
2007-01-13-ExtCompareMiscompile.ll
2007-01-14-FcmpSelf.ll
2007-01-18-VectorInfLoop.ll
2007-01-27-AndICmp.ll
2007-02-01-LoadSinkAlloca.ll
2007-02-07-PointerCast.ll
2007-02-23-PhiFoldInfLoop.ll
2007-03-13-CompareMerge.ll
2007-03-19-BadTruncChangePR1261.ll
2007-03-21-SignedRangeTest.ll
2007-03-25-BadShiftMask.ll
2007-03-25-DoubleShift.ll
2007-03-26-BadShiftMask.ll
2007-04-08-SingleEltVectorCrash.ll
2007-05-10-icmp-or.ll
2007-05-14-Crash.ll
2007-05-18-CastFoldBug.ll
2007-06-06-AshrSignBit.ll
2007-06-21-DivCompareMiscomp.ll
2007-08-02-InfiniteLoop.ll
2007-09-10-AliasConstFold.ll
2007-09-17-AliasConstFold2.ll
2007-10-10-EliminateMemCpy.ll
2007-10-12-Crash.ll
2007-10-28-stacksave.ll
2007-10-31-RangeCrash.ll
2007-10-31-StringCrash.ll
2007-11-07-OpaqueAlignCrash.ll
2007-11-15-CompareMiscomp.ll
2007-11-22-IcmpCrash.ll
2007-11-25-CompatibleAttributes.ll
2007-12-10-ConstFoldCompare.ll
2007-12-12-GEPScale.ll
2007-12-16-AsmNoUnwind.ll
2007-12-18-AddSelCmpSub.ll
2007-12-28-IcmpSub2.ll
2008-01-06-BitCastAttributes.ll
2008-01-06-CastCrash.ll
2008-01-06-VoidCast.ll
2008-01-13-AndCmpCmp.ll
2008-01-13-NoBitCastAttributes.ll
2008-01-14-VarArgTrampoline.ll
2008-01-21-MismatchedCastAndCompare.ll
2008-01-21-MulTrunc.ll
2008-01-27-FloatSelect.ll
2008-01-29-AddICmp.ll
2008-02-13-MulURem.ll
2008-02-16-SDivOverflow2.ll
2008-02-16-SDivOverflow.ll
2008-02-23-MulSub.ll
2008-02-28-OrFCmpCrash.ll
2008-03-13-IntToPtr.ll
2008-04-22-ByValBitcast.ll
2008-04-28-VolatileStore.ll
2008-04-29-VolatileLoadDontMerge.ll
2008-04-29-VolatileLoadMerge.ll
2008-05-08-LiveStoreDelete.ll
2008-05-08-StrLenSink.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
2008-05-09-SinkOfInvoke.ll
2008-05-17-InfLoop.ll
2008-05-18-FoldIntToPtr.ll
2008-05-22-IDivVector.ll
2008-05-22-NegValVector.ll
2008-05-23-CompareFold.ll
2008-05-31-AddBool.ll
2008-05-31-Bools.ll
2008-06-05-ashr-crash.ll
2008-06-08-ICmpPHI.ll
2008-06-13-InfiniteLoopStore.ll
2008-06-13-ReadOnlyCallStore.ll
2008-06-19-UncondLoad.ll
2008-06-21-CompareMiscomp.ll
2008-06-24-StackRestore.ll
2008-07-08-AndICmp.ll
2008-07-08-ShiftOneAndOne.ll
2008-07-08-SubAnd.ll
2008-07-08-VolatileLoadMerge.ll
2008-07-09-SubAndError.ll
2008-07-10-CastSextBool.ll
2008-07-10-ICmpBinOp.ll
2008-07-11-RemAnd.ll
2008-07-13-DivZero.ll
2008-07-16-fsub.ll
2008-07-16-sse2_storel_dq.ll
2008-08-05-And.ll
2008-08-17-ICmpXorSignbit.ll
2008-09-02-VectorCrash.ll
2008-09-29-FoldingOr.ll
2008-10-11-DivCompareFold.ll
2008-10-23-ConstFoldWithoutMask.ll
2008-11-01-SRemDemandedBits.ll
2008-11-08-FCmp.ll
2008-11-20-DivMulRem.ll
2008-11-27-IDivVector.ll
2008-11-27-MultiplyIntVec.ll
2008-11-27-UDivNegative.ll
2008-12-17-SRemNegConstVec.ll
2009-01-05-i128-crash.ll
2009-01-08-AlignAlloca.ll
2009-01-16-PointerAddrSpace.ll
2009-01-19-fmod-constant-float-specials.ll
2009-01-19-fmod-constant-float.ll
2009-01-24-EmptyStruct.ll
2009-01-31-InfIterate.ll
2009-01-31-Pressure.ll
2009-02-04-FPBitcast.ll
2009-02-11-NotInitialized.ll
Move library call prototype attribute inference to functionattrs
2013-03-21 00:55:59 +00:00
2009-02-20-InstCombine-SROA.ll
2009-02-21-LoadCST.ll
2009-02-25-CrashZeroSizeArray.ll
2009-03-18-vector-ashr-crash.ll
2009-03-20-AShrOverShift.ll
2009-03-24-InfLoop.ll
2009-04-07-MulPromoteToI96.ll
2009-05-23-FCmpToICmp.ll
2009-06-11-StoreAddrSpace.ll
2009-06-16-SRemDemandedBits.ll
2009-07-02-MaskedIntVector.ll
2009-12-17-CmpSelectNull.ll
2010-01-28-NegativeSRem.ll
2010-03-03-ExtElim.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
2010-05-30-memcpy-Struct.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
2010-11-01-lshr-mask.ll
For rdar://12329730, last piece.
2012-12-04 22:15:32 +00:00
2010-11-21-SizeZeroTypeGEP.ll
2010-11-23-Distributed.ll
2011-02-14-InfLoop.ll
2011-03-08-SRemMinusOneBadOpt.ll
2011-05-02-VectorBoolean.ll
2011-05-13-InBoundsGEP.ll
2011-05-28-swapmulsub.ll
2011-06-13-nsw-alloca.ll
2011-09-03-Trampoline.ll
2011-10-07-AlignPromotion.ll
2012-3-15-or-xor-constant.ll
2012-6-7-vselect-bitcast.ll
2012-01-11-OpaqueBitcastCrash.ll
2012-02-13-FCmp.ll
2012-02-28-ICmp.ll
2012-03-10-InstCombine.ll
2012-04-23-Neon-Intrinsics.ll
Use references to attribute groups on the call/invoke instructions.
2013-02-22 09:09:42 +00:00
2012-04-24-vselect.ll
2012-04-30-SRem.ll
2012-05-27-Negative-Shift-Crash.ll
TBAA: remove !tbaa from testing cases if not used.
2013-04-30 17:52:57 +00:00
2012-05-28-select-hang.ll
2012-06-06-LoadOfPHIs.ll
2012-07-25-LoadPart.ll
2012-07-30-addrsp-bitcast.ll
2012-08-28-udiv_ashl.ll
2012-09-17-ZeroSizedAlloca.ll
2012-09-24-MemcpyFromGlobalCrash.ll
2012-10-25-vector-of-pointers.ll
2012-12-14-simp-vgep.ll
Fix a crash in ValueTracking on vectors of pointers.
2012-12-14 20:43:49 +00:00
2013-03-05-Combine-BitcastTy-Into-Alloca.ll
InstCombine: Don't shrink allocas when combining with a bitcast.
2013-03-06 05:44:53 +00:00
abs-1.ll
instcombine: Migrate *abs optimizations
2012-11-26 00:24:07 +00:00
add2.ll
add3.ll
add-shrink.ll
add-sitofp.ll
add.ll
addnegneg.ll
adjust-for-sminmax.ll
align-2d-gep.ll
align-addr.ll
align-external.ll
Disallow the undocumented practice of starting the datalayout string with '-'.
2012-11-23 14:51:42 +00:00
alloca.ll
Don't try to calculate the alignment of an unsigned type. Fixes PR14371!
2012-11-18 05:39:39 +00:00
and2.ll
and-compare.ll
and-fcmp.ll
InstCombine: Check the operand types before merging fcmp ord & fcmp ord.
2013-04-12 21:56:23 +00:00
and-not-or.ll
and-or-and.ll
and-or-not.ll
and-or.ll
and-xor-merge.ll
and-xor-or.ll
and.ll
apint-add1.ll
apint-add2.ll
apint-and1.ll
apint-and2.ll
apint-and-compare.ll
apint-and-or-and.ll
apint-and-xor-merge.ll
apint-call-cast-target.ll
apint-cast-and-cast.ll
apint-cast-cast-to-and.ll
apint-cast.ll
apint-div1.ll
apint-div2.ll
apint-mul1.ll
apint-mul2.ll
apint-not.ll
apint-or1.ll
apint-or2.ll
apint-rem1.ll
apint-rem2.ll
apint-select.ll
apint-shift-simplify.ll
FileCheckize a bunch of tests.
2013-04-11 12:32:23 +00:00
apint-shift.ll
apint-shl-trunc.ll
apint-sub.ll
apint-xor1.ll
apint-xor2.ll
apint-zext1.ll
apint-zext2.ll
ashr-nop.ll
atomic.ll
badmalloc.ll
binop-cast.ll
bit-checks.ll
bit-tracking.ll
bitcast-bigendian.ll
Add test case for commit r178031.
2013-03-26 17:30:02 +00:00
bitcast-sext-vector.ll
bitcast-store.ll
bitcast-vec-canon.ll
bitcast-vec-uniform.ll
bitcast-vector-fold.ll
Constant fold vector bitcasts of halves similarly to how floats and doubles are folded. Test case included.
2013-02-26 22:51:07 +00:00
bitcast.ll
Optimization: bitcast (<1 x ...> insertelement ..., X, ...) to ... ==> bitcast X to ...
2013-02-11 21:41:44 +00:00
bitcount.ll
bittest.ll
bswap-fold.ll
bswap.ll
call2.ll
call-cast-target.ll
call-intrinsics.ll
call.ll
canonicalize_branch.ll
cast_ptr.ll
cast-mul-select.ll
cast-set.ll
cast.ll
unHECKify test fixed by Jacob in r159003.
2012-12-12 20:58:42 +00:00
compare-signs.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2013-01-01 13:57:25 +00:00
constant-expr-datalayout.ll
Teach the DataLayout aware constant folder to be much more aggressive towards
2013-02-14 03:23:37 +00:00
constant-fold-compare.ll
constant-fold-gep.ll
cos-1.ll
cos-2.ll
CPP_min_max.ll
crash.ll
dce-iterate.ll
deadcode.ll
debug-line.ll
instcombine: Migrate printf optimizations
2012-11-26 20:37:20 +00:00
debuginfo.ll
Revert "Adding DIImportedModules to DIScopes."
2013-03-28 02:44:59 +00:00
devirt.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
disable-simplify-libcalls.ll
Add more functions to the target library information.
2012-11-22 15:36:42 +00:00
div-shift.ll
div.ll
double-float-shrink-1.ll
double-float-shrink-2.ll
enforce-known-alignment.ll
exact.ll
Teach InstCombine to work with smaller legal types in icmp (shl %v, C1), C2
2013-02-15 14:35:47 +00:00
exp2-1.ll
exp2-2.ll
ExtractCast.ll
extractvalue.ll
fast-math.ll
Fix a bug in fast-math fadd/fsub simplification.
2013-03-25 20:43:41 +00:00
fcmp-select.ll
fcmp-special.ll
fcmp.ll
fdiv.ll
ffs-1.ll
Fix bogus comment; no functional change.
2012-11-26 00:25:33 +00:00
fmul.ll
1. Hoist minus sign as high as possible in an attempt to reveal
2013-01-15 21:09:32 +00:00
fold-bin-operand.ll
fold-calls.ll
fold-phi.ll
Add back FoldOpIntoPhi optimizations with fix. Included test cases to help catch these errors and to test the presence of the optimization itself
2012-12-14 22:08:26 +00:00
fold-sqrt-sqrtf.ll
fold-vector-select.ll
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll
Teach InstCombine to hoist FABS and FNEG through FPTRUNC instructions. The application of these operations commutes with the truncation, so we should prefer to do them in the smallest size we can, to save register space, use smaller constant pool entries, etc.
2013-01-10 22:06:52 +00:00
fpextend.ll
fprintf-1.ll
Do not optimise fprintf() calls if its return value is used.
2013-04-17 02:01:10 +00:00
fputs-1.ll
instcombine: Migrate fputs optimizations
2012-11-29 15:45:43 +00:00
fsub.ll
fwrite-1.ll
instcombine: Migrate fwrite optimizations
2012-11-29 15:45:39 +00:00
gep-addrspace.ll
gepgep.ll
getelementptr.ll
Use references to attribute groups on the call/invoke instructions.
2013-02-22 09:09:42 +00:00
hoist_instr.ll
icmp.ll
Reorders two transforms that collide with each other
2013-04-14 21:15:43 +00:00
idioms.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
IntPtrCast.ll
intrinsics.ll
Revert "Have InstCombine call SipmlifyCall when handling calls. Test case included."
2013-02-08 01:55:39 +00:00
invariant.ll
invoke.ll
Revert 179071 because it is not the right way to support non standard new/new[] operators.
2013-04-09 04:43:46 +00:00
isascii-1.ll
instcombine: Migrate isascii optimizations
2012-11-26 03:10:07 +00:00
isdigit-1.ll
instcombine: Migrate isdigit optimizations
2012-11-26 02:31:59 +00:00
JavaCompare.ll
known_align.ll
LandingPadClauses.ll
lit.local.cfg
load3.ll
ConstantFolding: Evaluate GEP indices in the index type.
2013-01-23 20:41:05 +00:00
load-cmp.ll
Reorders two transforms that collide with each other
2013-04-14 21:15:43 +00:00
load-select.ll
load.ll
loadstore-alignment.ll
logical-select.ll
The transform is:
2013-02-16 23:41:36 +00:00
lshr-phi.ll
malloc-free-delete.ll
When code size is the priority (Oz, MinSize attribute), help llvm
2013-01-07 18:37:41 +00:00
memcmp-1.ll
memcmp-2.ll
memcpy_chk-1.ll
memcpy_chk-2.ll
memcpy-1.ll
memcpy-2.ll
memcpy-from-global.ll
Get rid of the getPointeeAlignment helper function from
2012-11-26 23:04:53 +00:00
memcpy-to-load.ll
memcpy.ll
memmove_chk-1.ll
memmove_chk-2.ll
memmove-1.ll
memmove-2.ll
memmove.ll
memset2.ll
memset_chk-1.ll
memset_chk-2.ll
memset-1.ll
memset-2.ll
memset.ll
merge-icmp.ll
mul-masked-bits.ll
mul.ll
InstCombine: canonicalize sext-and --> select
2013-01-30 06:35:22 +00:00
multi-use-or.ll
narrow.ll
neon-intrinsics.ll
no-negzero.ll
not-fcmp.ll
not.ll
nothrow.ll
nsw.ll
obfuscated_splat.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
objsize-64.ll
Revert 179071 because it is not the right way to support non standard new/new[] operators.
2013-04-09 04:43:46 +00:00
objsize.ll
recommit tests
2013-04-20 17:39:52 +00:00
odr-linkage.ll
or-fcmp.ll
or-to-xor.ll
or-xor.ll
or.ll
Reorders two transforms that collide with each other
2013-04-14 21:15:43 +00:00
osx-names.ll
instcombine: Migrate fprintf optimizations
2012-11-29 15:45:33 +00:00
overflow.ll
phi-merge-gep.ll
phi.ll
pow-1.ll
Use references to attribute groups on the call/invoke instructions.
2013-02-22 09:09:42 +00:00
pow-2.ll
pr2645-0.ll
pr2645-1.ll
pr2996.ll
pr8547.ll
pr12251.ll
pr12338.ll
preserve-sminmax.ll
printf-1.ll
instcombine: Migrate printf optimizations
2012-11-26 20:37:20 +00:00
printf-2.ll
instcombine: Don't replace all uses for instructions with no uses
2012-11-27 18:52:49 +00:00
ptr-int-cast.ll
InstCombine: Fix and simplify the inttoptr side too.
2013-02-05 20:22:40 +00:00
puts-1.ll
instcombine: Migrate puts optimizations
2012-11-29 19:15:17 +00:00
README.txt
rem.ll
sdiv-1.ll
llvm/test/Transforms/InstCombine/sdiv-1.ll: FileCheck-ize.
2012-11-21 14:46:18 +00:00
sdiv-2.ll
select-2.ll
select-crash.ll
select-load-call.ll
select.ll
Add a test for the foldSelectICmpAndOr fix committed in r180779.
2013-05-02 02:44:23 +00:00
set.ll
setcc-strength-reduce.ll
sext.ll
Transform (sub 0, (zext bool to A)) to (sext bool to A) and
2013-01-21 21:57:20 +00:00
shift-sra.ll
shift.ll
Revert r174152. The shift amount may overflow and in that case this transformation is illegal.
2013-02-01 07:59:33 +00:00
shufflemask-undef.ll
shufflevec-constant.ll
sign-test-and-or.ll
signed-comparison.ll
signext.ll
rdar://12329730 (2nd part)
2012-12-04 00:04:54 +00:00
simplify-demanded-bits-pointer.ll
sink_instruction.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
sitofp.ll
sprintf-1.ll
Move sprintf simplifier tests to test/Transforms/InstCombine
2012-11-27 15:35:58 +00:00
sqrt.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
srem1.ll
srem-simplify-bug.ll
srem.ll
stack-overalign.ll
stacksaverestore.ll
store.ll
teach instcombine to preserve TBAA tag when merging two stores, part of
2012-12-31 08:10:58 +00:00
stpcpy_chk-1.ll
stpcpy_chk-2.ll
stpcpy-1.ll
stpcpy-2.ll
strcat-1.ll
strcat-2.ll
strcat-3.ll
strchr-1.ll
strchr-2.ll
strcmp-1.ll
strcmp-2.ll
strcpy_chk-1.ll
strcpy_chk-2.ll
strcpy_chk-64.ll
strcpy-1.ll
strcpy-2.ll
strcspn-1.ll
strcspn-2.ll
strlen-1.ll
strlen-2.ll
strncat-1.ll
strncat-2.ll
strncat-3.ll
strncmp-1.ll
strncmp-2.ll
strncpy_chk-1.ll
strncpy_chk-2.ll
strncpy-1.ll
strncpy-2.ll
strpbrk-1.ll
instcombine: Migrate strpbrk optimizations
2012-10-31 04:29:58 +00:00
strpbrk-2.ll
strrchr-1.ll
strrchr-2.ll
strspn-1.ll
instcombine: Migrate strspn optimizations
2012-11-08 01:33:50 +00:00
strstr-1.ll
strstr-2.ll
strto-1.ll
Move library call prototype attribute inference to functionattrs
2013-03-21 00:55:59 +00:00
struct-assign-tbaa.ll
sub-xor.ll
sub.ll
toascii-1.ll
instcombine: Migrate toascii optimizations
2012-11-26 03:38:52 +00:00
trunc.ll
udiv_select_to_select_shift.ll
udiv-simplify-bug-0.ll
udiv-simplify-bug-1.ll
udivrem-change-width.ll
urem-simplify-bug.ll
urem.ll
vec_demanded_elts.ll
vec_extract_2elts.ll
In the function InstCombiner::visitExtractElementInst() removed the limitation that extract is promoted over a cast only if the cast has only one use.
2013-04-18 19:56:44 +00:00
vec_extract_elt.ll
Teach InstCombine to optimize extract of a value from a vector add operation with a constant zero.
2013-01-15 23:43:14 +00:00
vec_extract_var_elt.ll
Changed back (relative to commit 179786) the operations executed when extract(cast) is transformed to cast(extract). It uses the Builder class as before. In addition the result node is added to the Worklist, so all the previous extract users will become the new scalar cast users.
2013-04-22 20:51:10 +00:00
vec_insertelt.ll
vec_narrow.ll
vec_phi_extract.ll
Added a function scalarizePHI() that sclarizes a vector phi instruction if it has only 2 uses: one to promote the vector phi in a loop and the other use is an extract operation of one element at a constant location.
2013-04-18 19:35:39 +00:00
vec_sext.ll
vec_shuffle.ll
Revert "InstCombine: Fold more shuffles of shuffles."
2013-05-01 00:25:27 +00:00
vector_gep1.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 02:33:22 +00:00
vector_gep2.ll
vector-casts.ll
InstCombine: canonicalize sext-and --> select
2013-01-30 06:35:22 +00:00
vector-srem.ll
vector-type.ll
Remove -O3.
2013-03-28 19:34:14 +00:00
volatile_store.ll
weak-symbols.ll
x86-crc32-demanded.ll
xor2.ll
fix a typo
2012-12-05 00:33:16 +00:00
xor-undef.ll
xor.ll
zero-point-zero-add.ll
zeroext-and-reduce.ll
zext-bool-add-sub.ll
Transform (sub 0, (zext bool to A)) to (sext bool to A) and
2013-01-21 21:57:20 +00:00
zext-fold.ll
zext-or-icmp.ll
zext.ll
