Dan Gohman 4d7ffe9779 [SelectionDAG] Fold more offsets into GlobalAddresses ...

SelectionDAG previously missed opportunities to fold constants into
GlobalAddresses in several areas. For example, given `(add (add GA, c1), y)`, it
would often reassociate to `(add (add GA, y), c1)`, missing the opportunity to
create `(add GA+c, y)`. This isn't often visible on targets such as X86 which
effectively reassociate adds in their complex address-mode folding logic,
however it is currently visible on WebAssembly since it currently has very
simple address mode folding code that doesn't reassociate anything.

This patch fixes this by making SelectionDAG fold offsets into GlobalAddresses
at the same times that it folds constants together, so that it doesn't miss any
opportunities to perform such folding.

Differential Revision: http://reviews.llvm.org/D16090


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258296 91177308-0d34-0410-b5e6-96231b3b80d8

2016-01-20 07:03:08 +00:00

..

2008-11-17-Shl64.ll

Eliminate more uses of llvm-as and llvm-dis.

2009-09-09 00:09:15 +00:00

2009-01-08-Crash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2009-01-14-Remat-Crash.ll

Eliminate more uses of llvm-as and llvm-dis.

2009-09-09 00:09:15 +00:00

2009-03-27-v2f64-param.ll

Delete useless trailing semicolons.

2010-01-05 17:55:26 +00:00

2009-07-15-store192.ll

Eliminate more uses of llvm-as and llvm-dis.

2009-09-09 00:09:15 +00:00

2010-02-25-LSR-Crash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2011-01-31-DAGCombineBug.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

2011-08-01-DynamicAllocBug.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

addsub64.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

aliases.ll

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

align.ll

[XCore] Prefer to word align functions.

2014-02-25 16:37:15 +00:00

alignment.ll

XCore target: return error for unsupported alignment

2013-11-12 10:11:05 +00:00

ashr.ll

XCore target: implement exception handling

2013-11-13 10:19:31 +00:00

atomic.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

basictest.ll

Eliminate more uses of llvm-as and llvm-dis.

2009-09-09 00:09:15 +00:00

bigstructret.ll

[XCore] Support functions returning more than 4 words.

2014-02-27 17:47:54 +00:00

byVal.ll

[XCore] Target optimized library function __memcpy_4()

2014-02-27 13:39:07 +00:00

call.ll

[XCore] Fix call of absolute address.

2014-03-04 16:50:30 +00:00

codemodel.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

constants.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

DbgValueOtherTargets.test

Remove unnecessary leading comment characters in lit-only file

2013-03-18 22:08:16 +00:00

dwarf_debug.ll

DI: Reverse direction of subprogram -> function edge.

2015-11-05 22:03:56 +00:00

epilogue_prologue.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

events.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

exception.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

float-intrinsics.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

fneg.ll

Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.

2013-07-13 20:38:47 +00:00

getid.ll

Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.

2013-07-13 20:38:47 +00:00

globals.ll

XCore target: fix const section handling

2014-02-11 10:36:26 +00:00

indirectbr.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

inline-asm.ll

[XCore] Add support for the "m" inline asm constraint.

2014-03-06 16:37:48 +00:00

ladd_lsub_combine.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

licm-ldwcp.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

linkage.ll

XCore target: Handle common linkage

2014-02-18 11:21:59 +00:00

lit.local.cfg

Reduce verbiage of lit.local.cfg files

2014-06-09 22:42:55 +00:00

llvm-intrinsics.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

load.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

memcpy.ll

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +00:00

misc-intrinsics.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

mkmsk.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

mul64.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

offset_folding.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

private.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

ps-intrinsics.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

resources_combine.ll

[XCore] Add dag combines for instructions that ignore some input bits.

2014-02-27 13:20:11 +00:00

resources.ll

[XCore] Add intrinsic for CLRPT (clear port time) instruction.

2014-02-25 17:31:15 +00:00

scavenging.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

sext.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

shedulingPreference.ll

XCore target: change to Sched::Source

2013-09-09 10:42:05 +00:00

sr-intrinsics.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

store.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

switch_long.ll

Lower BR_JT on the XCore to a jump into a series of jump instructions.

2010-02-23 13:25:07 +00:00

switch.ll

Lower BR_JT on the XCore to a jump into a series of jump instructions.

2010-02-23 13:25:07 +00:00

threads.ll

[SelectionDAG] Fold more offsets into GlobalAddresses

2016-01-20 07:03:08 +00:00

tls.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

trampoline.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

trap.ll

Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.

2013-07-13 20:38:47 +00:00

unaligned_load.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

unaligned_store_combine.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

unaligned_store.ll

Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.

2013-07-14 06:24:09 +00:00

varargs.ll

XCore target: Fix Vararg handling

2013-08-01 08:29:44 +00:00

zext.ll

[XCore] Fix instruction selection for zext, mkmsk instructions.

2013-07-02 14:46:34 +00:00

zextfree.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00