Bob Wilson f50e952b0d Fix PR7372: Conditional branches (at least on ARM) are treated as predicated, ... so when IfConverter::CopyAndPredicateBlock checks to see if it should ignore an instruction because it is a branch, it should not check if the branch is predicated. This case (when IgnoreBr is true) is only relevant from IfConvertTriangle, where new branches are inserted after the block has been copied and predicated. If the original branch is not removed, we end up with multiple conditional branches (possibly conflicting) at the end of the block. Aside from any immediate errors resulting from that, this confuses the AnalyzeBranch functions so that the branches are not analyzable. That in turn causes the IfConverter to think that the "Simple" pattern can be applied, and things go downhill fast because the "Simple" pattern does _not_ apply if the block can fall through. This is pretty fragile. If there are other degenerate cases where AnalyzeBranch fails, but where the block may still fall through, the IfConverter should not perform its "Simple" if-conversion. But, I don't know how to do that with the current AnalyzeBranch interface, so for now, the best thing seems to be to avoid creating branches that AnalyzeBranch cannot handle. Evan, please review! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106291 91177308-0d34-0410-b5e6-96231b3b80d8		2010-06-18 17:07:23 +00:00
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Analysis	Remove getIntegerSCEV; it's redundant with getConstant, and getConstant	2010-06-18 14:33:50 +00:00
Archive	Eliminate some unnessary Path::exists() calls.	2010-05-27 20:51:54 +00:00
AsmParser	Eliminate the restriction that the array size in an alloca must be i32.	2010-05-28 01:14:11 +00:00
Bitcode	Speedup bitcode writer. Do not walk all values for all functions to emit function local metadata. In one testcase, probably worst case scenario, the 70x speed up is seen.	2010-06-02 23:05:04 +00:00
CodeGen	Fix PR7372: Conditional branches (at least on ARM) are treated as predicated,	2010-06-18 17:07:23 +00:00
CompilerDriver	Print a space after the colon.	2010-05-20 21:11:37 +00:00
ExecutionEngine	Handle execution entrypoints with non-integer return types.	2010-06-18 02:01:10 +00:00
Linker	Add basic error checking to MemoryBuffer::getSTDIN.	2010-05-27 17:31:51 +00:00
MC	Update comment.	2010-06-17 00:49:46 +00:00
Support	Give NamedRegionTimer an Enabled flag, allowing all its clients to	2010-06-18 15:56:31 +00:00
System	Avoid "variable 'bits' set but not used [-Wunused-but-set-variable]"	2010-06-10 16:23:15 +00:00
Target	Treat the ARM inline asm {cc} constraint as a physreg (%CPSR), just like X86	2010-06-18 16:49:33 +00:00
Transforms	Disable indvars on loops when LoopSimplify form is not available.	2010-06-18 01:35:11 +00:00
VMCore	Use separate named MDNode to hold each function's local variable info.	2010-06-16 00:53:55 +00:00
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