David Majnemer b41f4bbfbd InstCombine: Optimize (1 << X) Pred CstP2 to X Pred Log2(CstP2) ...

We may, after other optimizations, find ourselves with IR that looks
like:

  %shl = shl i32 1, %y
  %cmp = icmp ult i32 %shl, 32

Instead, we should just compare the shift count:

  %cmp = icmp ult i32 %y, 5


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185242 91177308-0d34-0410-b5e6-96231b3b80d8

2013-06-28 23:42:03 +00:00

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Analysis

Minimize precision loss when computing cyclic probabilities.

2013-06-28 22:40:43 +00:00

Archive

Fix an ordering problem in the test.

2013-06-21 07:23:14 +00:00

Assembler

Added support for the Builtin attribute.

2013-06-27 00:25:01 +00:00

Bindings/Ocaml

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Bitcode

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BugPoint

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CodeGen

PPC: Ignore spill/restore requests for VRSAVE (except on Darwin)

2013-06-28 22:29:56 +00:00

DebugInfo

DebugInfo: PR14728: TLS support

2013-06-28 20:05:11 +00:00

ExecutionEngine

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Feature

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FileCheck

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Instrumentation

[asan] workaround for PR16277: don't instrument AllocaInstr with alignment more than the redzone size

2013-06-26 09:49:52 +00:00

Integer

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JitListener

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Linker

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MC

ARM: Fix pseudo-instructions for SRS (Store Return State).

2013-06-28 15:09:46 +00:00

Object

[yaml2obj][ELF] Make symbol table top-level key.

2013-06-22 01:38:00 +00:00

Other

Suppress llvm/test/Other/can-execute.txt on msys bash.

2013-06-26 10:56:44 +00:00

TableGen

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tools

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Transforms

InstCombine: Optimize (1 << X) Pred CstP2 to X Pred Log2(CstP2)

2013-06-28 23:42:03 +00:00

Unit

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Verifier

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YAMLParser

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CMakeLists.txt

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lit.cfg

Suppress llvm/test/Other/can-execute.txt on msys bash.

2013-06-26 10:56:44 +00:00

lit.site.cfg.in

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Makefile

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Makefile.tests

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TestRunner.sh

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