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Mehdi Amini 92479849da This patch builds on top of D13378 to handle constant condition. 
With this patch, clang -O3 optimizes correctly providing > 1000x speedup on this artificial benchmark):

for (a=0; a<n; a++)
    for (b=0; b<n; b++)
        for (c=0; c<n; c++)
            for (d=0; d<n; d++)
                for (e=0; e<n; e++)
                    for (f=0; f<n; f++)
                        x++;
From test-suite/SingleSource/Benchmarks/Shootout/nestedloop.c

Reviewers: sanjoyd

Differential Revision: http://reviews.llvm.org/D13390

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 249431
2015-10-06 17:19:20 +00:00
..
Analysis This patch builds on top of D13378 to handle constant condition. 2015-10-06 17:19:20 +00:00
AsmParser HHVM calling conventions. 2015-09-29 22:09:16 +00:00
Bitcode Make sure the CastInst is valid before trying to create it 2015-10-06 12:37:54 +00:00
CodeGen [TwoAddressInstructionPass] When looking for a 3 addr conversion after commuting, make sure regB has been updated to take into account the commute. 2015-10-06 05:39:59 +00:00
DebugInfo Use makeArrayRef or None to avoid unnecessarily mentioning the ArrayRef type extra times. NFC 2015-09-21 05:32:41 +00:00
ExecutionEngine Fix performance problem in long-running SectionMemoryManagers 2015-10-01 02:45:07 +00:00
Fuzzer [libFuzzer] trying to fix at-exit hang 2015-10-03 07:02:05 +00:00
IR Simplify code. No functionality change. 2015-10-05 18:53:30 +00:00
IRReader Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC. 2015-06-16 22:27:55 +00:00
LibDriver There is only one saver of strings. 2015-08-13 01:07:02 +00:00
LineEditor
Linker [opaque pointer types] Switch a few cases of getElementType over, since I had them lying around anyway 2015-09-14 20:29:26 +00:00
LTO Reapply "LTO: Disable extra verify runs in release builds" 2015-09-15 23:05:59 +00:00
MC Fix pr24486. 2015-10-05 12:07:05 +00:00
Object Support for function summary index bitcode sections and files. 2015-10-04 14:33:43 +00:00
Option Add an ArgList::AddAllArgs that accepts a vector of OptSpecifier. 2015-07-29 17:34:41 +00:00
Passes [PM] Port SROA to the new pass manager. 2015-09-12 09:09:14 +00:00
ProfileData Remove AutoFDO profile handling for GCC's LIPO. NFC. 2015-10-05 21:08:05 +00:00
Support [Support] Add a version of fs::make_absolute with a custom CWD. 2015-10-05 13:02:43 +00:00
TableGen TableGen: Support folding casts from bits to int 2015-07-31 01:12:06 +00:00
Target AMDGPU/SI: Add 64-bit versions of v_nop and v_clrexcp 2015-10-06 15:57:53 +00:00
Transforms [EarlyCSE] Constify ParseMemoryInst methods (NFC). 2015-10-06 13:35:30 +00:00
CMakeLists.txt LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00
LLVMBuild.txt Wrap some long lines in LLVMBuild files. NFC 2015-06-12 18:44:57 +00:00
Makefile LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00