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TwoAddressInstructionPass stops after a successful commuting but 3 Addr conversion might be good for some cases. Consider: int foo(int a, int b) { return a + b; } Before this commit, we emit: addl %esi, %edi movl %edi, %eax ret After this commit, we try 3 Addr conversion: leal (%rsi,%rdi), %eax ret Patch by Volkan Keles <vkeles@apple.com>! Differential Revision: http://reviews.llvm.org/D10851 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241206 91177308-0d34-0410-b5e6-96231b3b80d8 |
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