llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-10 18:34:09 +00:00

History

Chris Lattner e19e4baf3b teach phi translation of GEPs to simplify geps like 'gep x, 0'.

This allows us to compile the example from PR5313 into:

LBB1_2:                                                     ## %bb
	incl	%ecx
	movb	%al, (%rsi)
	movslq	%ecx, %rax
	movb	(%rdi,%rax), %al
	testb	%al, %al
	jne	LBB1_2

instead of:

LBB1_2:                                                     ## %bb
	movslq	%eax, %rcx
	incl	%eax
	movb	(%rdi,%rcx), %cl
	movb	%cl, (%rsi)
	movslq	%eax, %rcx
	cmpb	$0, (%rdi,%rcx)
	jne	LBB1_2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89981 91177308-0d34-0410-b5e6-96231b3b80d8

2009-11-27 00:34:38 +00:00

Analysis

@test9 is a testcase for r89958. Before 89958, we misanalyzed the

2009-11-26 19:25:46 +00:00