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f3295eafa5
llvm-mirror/test/Transforms
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Chandler Carruth f3295eafa5 Fix a stunning oversight in the inline cost analysis. It was never 
propagating one of the values it simplified to a constant across
a myriad of instructions. Notably, ptrtoint instructions when we had
a constant pointer (say, 0) didn't propagate that, blocking a massive
number of down-stream optimizations.

This was uncovered when investigating why we fail to inline and delete
the boilerplate in:

  void f() {
    std::vector<int> v;
    v.push_back(1);
  }

It turns out most of the efforts I've made thus far to improve the
analysis weren't making it far purely because of this. After this is
fixed, the store-to-load forwarding patch enables LLVM to optimize the
above to an empty function. We still can't nuke a second push_back, but
for different reasons.

There is a very real chance this will cause somewhat noticable changes
in inlining behavior, so please let me know if you see regressions (or
improvements!) because of this patch.

llvm-svn: 171196
2012-12-28 14:43:42 +00:00
..
ADCE
ArgumentPromotion Fix the remaining TCL-style quotes found in the testsuite. This is 2012-07-02 19:09:46 +00:00
BBVectorize BBVectorize: Use VTTI to compute costs for intrinsics vectorization 2012-12-26 01:36:57 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare Move load_to_switch.ll to test/CodeGen/SPARC/ 2012-09-19 09:25:03 +00:00
ConstantMerge
ConstProp llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and FoldReinterpretLoadFromConstPtr() Big-endian-aware. 2012-11-08 20:34:25 +00:00
CorrelatedValuePropagation CorrelatedPropagation: BasicBlock::removePredecessor can simplify PHI nodes. If the it's the condition of a SwitchInst, reload it. 2012-09-28 10:42:50 +00:00
DeadArgElim Fix PR14016. 2012-10-09 08:13:15 +00:00
DeadStoreElimination Make this test check the transforms it's actually doing. Also add a test that it 2012-09-25 18:17:38 +00:00
EarlyCSE New EarlyCSE tests for CSE-ing across commutativity. 2012-10-09 16:58:13 +00:00
FunctionAttrs Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
GlobalDCE
GlobalOpt Revert previous check in r168581, r169079 as they are still in code review status. 2012-12-01 10:54:28 +00:00
GVN unHECKify test. It was fixed by Chris in 2009. 2012-12-12 20:43:00 +00:00
IndVarSimplify Follow up to 168711: It's safe to base this analysis on the found compare, just return the value for the right predicate. 2012-11-29 19:07:57 +00:00
Inline Fix a stunning oversight in the inline cost analysis. It was never 2012-12-28 14:43:42 +00:00
InstCombine Transform (x&C)>V into (x&C)!=0 where possible 2012-12-19 19:47:13 +00:00
InstSimplify Teach instsimplify to use the constant folder where appropriate for 2012-12-28 14:23:29 +00:00
Internalize Change the internalize pass to internalize all symbols when given an empty 2012-10-26 18:47:48 +00:00
IPConstantProp Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
JumpThreading Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. 2012-12-20 16:04:27 +00:00
LCSSA Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
LICM Set %defaultjit to use MCJIT for PowerPC targets. 2012-10-30 18:07:58 +00:00
LoopDeletion
LoopIdiom - Re-enable population count loop idiom recognization 2012-12-09 03:12:46 +00:00
LoopRotate Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. 2012-12-20 16:04:27 +00:00
LoopSimplify Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
LoopStrengthReduce LSR critical edge splitting fix for PR13756. 2012-09-18 17:51:33 +00:00
LoopUnroll Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. 2012-12-20 16:04:27 +00:00
LoopUnswitch Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call. 2012-12-20 16:04:27 +00:00
LoopVectorize If all of the write objects are identified then we can vectorize the loop even if the read objects are unidentified. 2012-12-26 23:30:53 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch PR1255 related changes (case ranges): 2012-05-24 09:33:20 +00:00
Mem2Reg
MemCpyOpt In my recent change to avoid use of underaligned memory I didn't notice that 2012-10-04 13:53:21 +00:00
MergeFunc Fix the remaining TCL-style quotes found in the testsuite. This is 2012-07-02 19:09:46 +00:00
MetaRenamer Review feedback from Duncan Sands. Alphabetize includes and simplify 2012-09-14 19:19:57 +00:00
ObjCARC Detect overflow in the path count computation. rdar://12277446. 2012-09-12 20:45:17 +00:00
PhaseOrdering Add test case for r164850. 2012-09-29 00:12:08 +00:00
PruneEH The normal edge of an invoke is not allowed to branch to a block with a 2012-08-10 20:55:20 +00:00
Reassociate Fix PR14060, an infinite loop in reassociate. The problem was that one of the 2012-11-18 19:27:01 +00:00
ScalarRepl Port the global copy optimization from the SROA pass to InstCombine. 2012-08-21 08:39:44 +00:00
SCCP llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and FoldReinterpretLoadFromConstPtr() Big-endian-aware. 2012-11-08 20:34:25 +00:00
SimplifyCFG Fix logic to determine whether to turn a switch into a lookup table. When 2012-11-30 02:02:42 +00:00
SimplifyLibCalls instcombine: Migrate puts optimizations 2012-11-29 19:15:17 +00:00
Sink Enhance the sinking code to handle diamond patterns. Patch by 2012-05-31 08:09:49 +00:00
SROA Rename the test so that we can add additional vectors-of-pointers tests 2012-12-18 05:50:54 +00:00
StripSymbols
TailCallElim Revert r166407 because it caused analyzer tests to crash and broke self-host bots. 2012-10-22 18:16:14 +00:00
TailDup Convert the uses of '|&' to use '2>&1 |' instead, which works on old 2012-07-02 18:37:59 +00:00