3c9dc6bd46
Conditional branch being fixed up is not the last MI in the BB, there is a
...
unconditional branch following it. Simply invert the condition and swap
destinations if the conditional branch can reach the destination of the
unconditional branch:
beq L1
b L2
=>
bne L2
b L1
llvm-svn: 33548
2007-01-26 20:38:26 +00:00
f9e5445ed4
Make LABEL a builtin opcode.
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llvm-svn: 33537
2007-01-26 14:34:52 +00:00
1e270b639d
SplitBlockBeforeInstr() insert a unconditional branch to the next BB. This
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is unnecessary when we are fixing up a conditional branch since we will be
adding a unconditional branch to the destination of the original branch.
llvm-svn: 33517
2007-01-26 02:02:39 +00:00
db7f0591f3
Need to scan the function for branches even if there aren't any constants.
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llvm-svn: 33515
2007-01-26 01:04:44 +00:00
1d138989f4
Forgot to update this.
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llvm-svn: 33512
2007-01-25 23:31:04 +00:00
010ae386b8
Add comment, fix typo, reduce memory usage, etc.
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llvm-svn: 33510
2007-01-25 23:18:59 +00:00
417260dc11
Doh. Skip JT branches.
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llvm-svn: 33501
2007-01-25 19:43:52 +00:00
22c7cf504e
Added (preliminary) branch shortening capability to constantpool island pass.
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llvm-svn: 33497
2007-01-25 03:12:46 +00:00
1526ba50d9
Use PC relative ldr to load from a constantpool in Thumb mode.
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llvm-svn: 33484
2007-01-24 08:53:17 +00:00
10043e215b
ARM backend contribution from Apple.
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llvm-svn: 33353
2007-01-19 07:51:42 +00:00
Evan Cheng