Chris Lattner
ba7e756c22
Start inferring side effect information more aggressively, and fix many bugs in the
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x86 backend where instructions were not marked maystore/mayload, and perf issues where
instructions were not marked neverHasSideEffects. It would be really nice if we could
write patterns for copy instructions.
I have audited all the x86 instructions down to MOVDQAmr. The flags on others and on
other targets are probably not right in all cases, but no clients currently use this
info that are enabled by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45829 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-10 07:59:24 +00:00
Chris Lattner
dcc8b4f5d3
add a mayLoad property for machine instructions, a correlary to mayStore.
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This is currently not set by anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-08 18:05:21 +00:00
Chris Lattner
8f707e15fb
rename hasVariableOperands() -> isVariadic(). Add some comments.
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Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45687 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 05:19:29 +00:00
Chris Lattner
af3eb7c758
the name field of instructions is never set to a non-empty string,
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just unconditionally use the def name of the instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45684 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 04:57:31 +00:00
Chris Lattner
834f1ce031
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 23:38:27 +00:00
Chris Lattner
2e48a70b35
rename isStore -> mayStore to more accurately reflect what it captures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 08:36:04 +00:00
Chris Lattner
6cc654b27a
Split the impl of CodeGenInstruction out to its own .cpp file, add a getName() accessor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45645 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 01:35:39 +00:00
