RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-21 03:53:04 +02:00
Code Issues Projects Releases Wiki Activity
9ede5a39dd
llvm-mirror/lib/Transforms/Scalar
History
Hal Finkel 9ede5a39dd Make use of @llvm.assume from LazyValueInfo 
This change teaches LazyValueInfo to use the @llvm.assume intrinsic. Like with
the known-bits change (r217342), this requires feeding a "context" instruction
pointer through many functions. Aside from a little refactoring to reuse the
logic that turns predicates into constant ranges in LVI, the only new code is
that which can 'merge' the range from an assumption into that otherwise
computed. There is also a small addition to JumpThreading so that it can have
LVI use assumptions in the same block as the comparison feeding a conditional
branch.

With this patch, we can now simplify this as expected:
int foo(int a) {
  __builtin_assume(a > 5);
  if (a > 3) {
    bar();
    return 1;
  }
  return 0;
}

llvm-svn: 217345
2014-09-07 20:29:59 +00:00
..
ADCE.cpp [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:55:47 +00:00
AlignmentFromAssumptions.cpp Add an AlignmentFromAssumptions Pass 2014-09-07 20:05:11 +00:00
CMakeLists.txt Add an AlignmentFromAssumptions Pass 2014-09-07 20:05:11 +00:00
ConstantHoisting.cpp ConstantHoisting.cpp: Add <tuple> for std::tie, since r207593 removed FileSystem.h, it includes <tuple>. 2014-04-30 06:44:50 +00:00
ConstantProp.cpp [C++] Use 'nullptr'. Transforms edition. 2014-04-25 05:29:35 +00:00
CorrelatedValuePropagation.cpp Make use of @llvm.assume from LazyValueInfo 2014-09-07 20:29:59 +00:00
DCE.cpp [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:55:47 +00:00
DeadStoreElimination.cpp Revert "r214897 - Remove dead zero store to calloc initialized memory" 2014-08-06 19:30:38 +00:00
EarlyCSE.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
FlattenCFGPass.cpp [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:55:47 +00:00
GVN.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
IndVarSimplify.cpp IndVarSimplify: Address review comments for r217102 2014-09-04 00:23:13 +00:00
JumpThreading.cpp Make use of @llvm.assume from LazyValueInfo 2014-09-07 20:29:59 +00:00
LICM.cpp LICM: Don't crash when an instruction is used by an unreachable BB 2014-09-02 16:22:00 +00:00
LLVMBuild.txt Add proper dependencies to LLVMBuild.txt in llvm/lib. 2013-12-10 05:39:34 +00:00
LoadCombine.cpp Fixing a few -Woverloaded-virtual warnings by exposing the hidden virtual function as well. No functional changes intended. 2014-07-30 19:23:59 +00:00
LoopDeletion.cpp Use range based for loops to avoid needing to re-mention SmallPtrSet size. 2014-08-24 23:23:06 +00:00
LoopIdiomRecognize.cpp Remove extra whitespace in function declaration. No functionality change. 2014-06-14 03:48:29 +00:00
LoopInstSimplify.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
LoopRerollPass.cpp Feeding isSafeToSpeculativelyExecute its DataLayout pointer 2014-07-10 14:41:31 +00:00
LoopRotation.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
LoopStrengthReduce.cpp Use range based for loops to avoid needing to re-mention SmallPtrSet size. 2014-08-24 23:23:06 +00:00
LoopUnrollPass.cpp Add functions for finding ephemeral values 2014-09-07 13:49:57 +00:00
LoopUnswitch.cpp Add functions for finding ephemeral values 2014-09-07 13:49:57 +00:00
LowerAtomic.cpp IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
Makefile
MemCpyOptimizer.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
MergedLoadStoreMotion.cpp Fix for multi-line comment warning 2014-08-07 23:19:55 +00:00
PartiallyInlineLibCalls.cpp PartiallyInlineLibCalls: Check sqrt result type before transforming it. 2014-08-01 23:21:21 +00:00
Reassociate.cpp Reassociate x + -0.1234 * y into x - 0.1234 * y 2014-08-21 10:45:30 +00:00
Reg2Mem.cpp [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:55:47 +00:00
SampleProfile.cpp Remove some calls to std::move. 2014-08-01 14:31:55 +00:00
Scalar.cpp Add an AlignmentFromAssumptions Pass 2014-09-07 20:05:11 +00:00
Scalarizer.cpp Add scoped-noalias metadata 2014-07-24 14:25:39 +00:00
ScalarReplAggregates.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
SCCP.cpp Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created. 2014-08-27 05:25:25 +00:00
SeparateConstOffsetFromGEP.cpp Partially revert r210444 due to performance regression 2014-07-16 23:25:00 +00:00
SimplifyCFGPass.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
Sink.cpp Use range based for loops to avoid needing to re-mention SmallPtrSet size. 2014-08-24 23:23:06 +00:00
SROA.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
StructurizeCFG.cpp Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges." 2014-07-21 17:06:51 +00:00
TailRecursionElimination.cpp We may visit a call that uses an alloca multiple times in callUsesLocalStack, sometimes with IsNocapture true and sometimes with IsNocapture false. We accidentally skipped work we needed to do in the IsNocapture=false case if we were called with IsNocapture=true the first time. Fixes PR20405! 2014-07-23 06:24:49 +00:00