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Chris Lattner
cbf68dfbc0
Fix a bug in ReduceLoadWidth that wasn't handling extending
loads properly. We miscompiled the testcase into: _test: ## @test movl $128, (%rdi) movzbl 1(%rdi), %eax ret Now we get a proper: _test: ## @test movl $128, (%rdi) movsbl (%rdi), %eax movzbl %ah, %eax ret This fixes PR8757. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122392 91177308-0d34-0410-b5e6-96231b3b80d8
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