Jonas Paulsson 1d777c335f [SystemZ] Improve instruction selection of 64 bit shifts and rotates. ...

For shift and rotate instructions that only use the last 6 bits of the shift
amount, a shift amount of (x*64-s) can be substituted with (-s). This saves
one instruction and a register:

  lhi     %r1, 64
  sr      %r1, %r3
  sllg    %r2, %r2, 0(%r1)
  =>
  lcr     %r1, %r3
  sllg    %r2, %r2, 0(%r1)

Review: Ulrich Weigand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357481 91177308-0d34-0410-b5e6-96231b3b80d8

2019-04-02 15:36:30 +00:00

..

AArch64

Enforce StackID definition in PEI

2019-04-02 09:46:52 +00:00

AMDGPU

[AMDGPU] Add more test cases of D59608.

2019-04-02 00:36:37 +00:00

ARC

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

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

ARM

SimplifyCFG SinkCommonCodeFromPredecessors: Also sink function calls without used results (PR41259)

2019-04-02 08:01:38 +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] add proper multi-dimensional array support

2019-03-28 21:59:49 +00:00

Generic

Fix nondeterminism introduced in r353954

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

Hexagon

[Hexagon] Remove fcmp undef from reduced tests

2019-03-29 19:14:52 +00:00

Inputs

…

Lanai

[Targets] Add errors for tiny and kernel codemodel on targets that don't support them

2018-12-07 12:10:23 +00:00

Mips

[mips] Use AltOrders to prevent using odd FP-registers

2019-04-02 13:57:32 +00:00

MIR

MIR: Freeze reserved regs after parsing everything

2019-03-27 16:12:26 +00:00

MSP430

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

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

NVPTX

[NVPTX] Fix the codegen for llvm.round.

2019-04-01 16:10:26 +00:00

PowerPC

[DAGCombine] Prune unnused nodes.

2019-03-29 17:35:56 +00:00

RISCV

[RISCV] Generate address sequences suitable for mcmodel=medium

2019-04-01 14:42:56 +00:00

SPARC

[SelectionDAG] Add icmp UNDEF handling to SelectionDAG::FoldSetCC

2019-03-25 18:51:57 +00:00

SystemZ

[SystemZ] Improve instruction selection of 64 bit shifts and rotates.

2019-04-02 15:36:30 +00:00

Thumb

[ARM] Optimize expressions like "return x != 0;" for Thumb1.

2019-04-02 00:01:23 +00:00

Thumb2

[ARM] Add missing memory operands to a bunch of instructions.

2019-03-25 22:42:30 +00:00

WebAssembly

[WebAssembly] Fix unwind destination mismatches in CFG stackify

2019-03-30 11:04:48 +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][AVX] Add test case showing failure to fold broadcast load if its also used as a scalar

2019-04-02 10:31:00 +00:00

XCore

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

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