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7 Commits

Author SHA1 Message Date
Dan Gohman
df2896d609 Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dan Gohman
5f6f8101d5 Split the Add, Sub, and Mul instruction opcodes into separate 
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897
 2009-06-04 22:49:04 +00:00
Dale Johannesen
f86e34065b Reverse a loop that is counting up to a maximum to 
count down to 0 instead, under very restricted
circumstances.  Adjust 4 testcases in which this
optimization fires.

llvm-svn: 71439
 2009-05-11 17:15:42 +00:00
Owen Anderson
f845ea8d52 Eliminate another use of -disable-correct-folding. 
llvm-svn: 54356
 2008-08-05 18:03:01 +00:00
Owen Anderson
231111faf9 Update these tests to work by disabling the new correct CFG generation. This flag should ONLY be used to for tests like these. 
llvm-svn: 54334
 2008-08-04 23:55:29 +00:00
Evan Cheng
bab5925a0b Enable two-address remat by default. 
llvm-svn: 52701
 2008-06-25 01:16:38 +00:00
Evan Cheng
90c548af8e Do not fold reload into an instruction with multiple uses. It issues one extra load. 
llvm-svn: 44467
 2007-11-30 21:23:43 +00:00