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https://github.com/c64scene-ar/llvm-6502.git
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1de43ede89
another mechanical change accomplished though the power of terrible Perl scripts. I have manually switched some "s to 's to make escaping simpler. While I started this to fix tests that aren't run in all configurations, the massive number of tests is due to a really frustrating fragility of our testing infrastructure: things like 'grep -v', 'not grep', and 'expected failures' can mask broken tests all too easily. Essentially, I'm deeply disturbed that I can change the testsuite so radically without causing any change in results for most platforms. =/ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159547 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
682 B
LLVM
20 lines
682 B
LLVM
;; X's live range extends beyond the shift, so the register allocator
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;; cannot coalesce it with Y. Because of this, a copy needs to be
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;; emitted before the shift to save the register value before it is
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;; clobbered. However, this copy is not needed if the register
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;; allocator turns the shift into an LEA. This also occurs for ADD.
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; Check that the shift gets turned into an LEA.
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; RUN: llc < %s -march=x86 -x86-asm-syntax=intel | \
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; RUN: not grep "mov E.X, E.X"
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@G = external global i32 ; <i32*> [#uses=1]
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define i32 @test1(i32 %X) {
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%Z = shl i32 %X, 2 ; <i32> [#uses=1]
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store volatile i32 %Z, i32* @G
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ret i32 %X
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}
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