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e7cf062537
llvm-6502/lib
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Benjamin Kramer e7cf062537 DAGCombine: fold "(zext x) == C" into "x == (trunc C)" if the trunc is lossless. 
On x86 this allows to fold a load into the cmp, greatly reducing register pressure.
  movzbl	(%rdi), %eax
  cmpl	$47, %eax
->
  cmpb	$47, (%rdi)

This shaves 8k off gcc.o on i386. I'll leave applying the patch in README.txt to Chris :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 18:47:44 +00:00
..
Analysis PR9214: Convert Metadata API to use ArrayRef. 2011-04-21 19:59:31 +00:00
Archive
AsmParser PR9214: Convert Metadata API to use ArrayRef. 2011-04-21 19:59:31 +00:00
Bitcode PR9214: Convert Metadata API to use ArrayRef. 2011-04-21 19:59:31 +00:00
CodeGen DAGCombine: fold "(zext x) == C" into "x == (trunc C)" if the trunc is lossless. 2011-04-22 18:47:44 +00:00
CompilerDriver
ExecutionEngine 80-col fix. 2011-04-22 03:07:06 +00:00
Linker
MC Delete the other unused variable in this function. Sorry I missed this 2011-04-22 01:29:18 +00:00
Object Use enums for constant values. 2011-04-22 06:34:01 +00:00
Support Add support for 64-bit object files to Path. 2011-04-22 03:50:19 +00:00
Target DAGCombine: fold "(zext x) == C" into "x == (trunc C)" if the trunc is lossless. 2011-04-22 18:47:44 +00:00
Transforms PR9214: Convert Metadata API to use ArrayRef. 2011-04-21 19:59:31 +00:00
VMCore PR9214: Convert Metadata API to use ArrayRef. 2011-04-21 19:59:31 +00:00
CMakeLists.txt
Makefile