Jakob Stoklund Olesen 320db3f805 Avoid rematerializing a redef immediately after the old def. ... PR14098 contains an example where we would rematerialize a MOV8ri immediately after the original instruction: %vreg7:sub_8bit<def> = MOV8ri 9; GR32_ABCD:%vreg7 %vreg22:sub_8bit<def> = MOV8ri 9; GR32_ABCD:%vreg7 Besides being pointless, it is also wrong since the original instruction only redefines part of the register, and the value read by the new instruction is wrong. The problem was the LiveRangeEdit::allUsesAvailableAt() didn't special-case OrigIdx == UseIdx and found the wrong SSA value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166068 91177308-0d34-0410-b5e6-96231b3b80d8		2012-10-16 22:51:58 +00:00
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ARM	Revert r166046 "Switch back to the old coalescer for now to fix the 32 bit bit"	2012-10-16 22:51:55 +00:00
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PowerPC	This patch addresses PR13949.	2012-10-16 13:30:53 +00:00
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X86	Avoid rematerializing a redef immediately after the old def.	2012-10-16 22:51:58 +00:00
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