Craig Topper 177463821b [X86] Delay creating index register negations during address matching until after we know for sure the match will succeed ...

If we're trying to match an LEA, its possible the LEA match will be deemed unprofitable. In which case the negation we created in matchAddress would be left dangling in the SelectionDAG. This could artificially increase use counts for other nodes in the DAG. Though I don't have an example of that. But it just seems like bad form to have dangling nodes in isel.

Differential Revision: https://reviews.llvm.org/D61047

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360823 91177308-0d34-0410-b5e6-96231b3b80d8

2019-05-15 21:59:53 +00:00

..

AArch64

[AArch64] only indicate CFI on Windows if we emitted CFI

2019-05-15 21:23:41 +00:00

AMDGPU

[AMDGPU] Increases available SGPR for Calling Convention

2019-05-15 14:43:55 +00:00

ARC

[ARC] Add ARCOptAddrMode pass to generate postincrement loads/stores.

2019-03-20 20:06:21 +00:00

ARM

[ARM] Cortex-M4 schedule

2019-05-15 12:41:58 +00:00

AVR

[DAGCombiner] If a TokenFactor would be merged into its user, consider the user later.

2019-03-13 17:07:09 +00:00

BPF

[BPF] emit BTF sections only if debuginfo available

2019-05-13 05:00:23 +00:00

Generic

Fix nondeterminism introduced in r353954

2019-03-26 12:18:08 +00:00

Hexagon

[llvm-readobj] Change -long-option to --long-option in tests. NFC

2019-05-01 05:27:20 +00:00

Inputs

…

Lanai

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00

Mips

[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format

2019-05-15 02:35:32 +00:00

MIR

[AMDGPU] gfx1010 tests. NFC.

2019-05-13 19:30:06 +00:00

MSP430

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00

NVPTX

SelectionDAG: accommodate atomic floating stores.

2019-05-10 11:23:04 +00:00

PowerPC

RegAlloc: try to fail more gracefully when out of registers

2019-05-15 17:29:58 +00:00

RISCV

[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format

2019-05-15 02:35:32 +00:00

SPARC

[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format

2019-05-15 02:35:32 +00:00

SystemZ

[SystemZ] Model floating-point control register

2019-05-13 09:47:26 +00:00

Thumb

[ARM] Add an extra constant hoisting test. NFC

2019-04-10 18:05:57 +00:00

Thumb2

[ARM] Don't use the Machine Scheduler for cortex-m at minsize

2019-05-15 12:58:02 +00:00

WebAssembly

[WebAssembly] Don't assume that zext/sext result is i32/i64 in fast isel (PR41841)

2019-05-13 19:40:18 +00:00

WinCFGuard

[COFF] Emit @feat.00 on 64-bit and set the CFG bit when emitting guardcf tables

2018-09-19 09:58:30 +00:00

WinEH

Fix invalid target triples in tests. (NFC)

2019-03-04 23:37:41 +00:00

X86

[X86] Delay creating index register negations during address matching until after we know for sure the match will succeed

2019-05-15 21:59:53 +00:00

XCore

[AsmPrinter] refactor to support %c w/ GlobalAddress'

2019-04-26 18:45:04 +00:00