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23 lines
630 B
LLVM
23 lines
630 B
LLVM
; Coalescing from R32 to a subset R32_. Once another register coalescer bug is
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; fixed, the movb should go away as well.
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; RUN: llvm-as < %s | llc -march=x86 -relocation-model=static | grep 'movl' | wc -l
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%B = external global uint
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%C = external global ushort*
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void %test(uint %A) {
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%A = cast uint %A to ubyte
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%tmp2 = load uint* %B
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%tmp3 = and ubyte %A, 16
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%tmp4 = shl uint %tmp2, ubyte %tmp3
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store uint %tmp4, uint* %B
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%tmp6 = shr uint %A, ubyte 3
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%tmp = load ushort** %C
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%tmp8 = cast ushort* %tmp to uint
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%tmp9 = add uint %tmp8, %tmp6
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%tmp9 = cast uint %tmp9 to ushort*
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store ushort* %tmp9, ushort** %C
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ret void
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}
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