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https://github.com/c64scene-ar/llvm-6502.git
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e9eded1c25
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26656 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.9 KiB
LLVM
46 lines
1.9 KiB
LLVM
; RUN: llvm-as < %s | llc -march=x86 -x86-asm-syntax=intel | grep 'and DWORD PTR' | wc -l | grep 1
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;
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; FIXME: The number of (store (and (load ..) ..) ..) really should be 2. But the current hack
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; only allow one of the folding to happen.
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%struct.Macroblock = type { int, int, int, int, int, [8 x int], %struct.Macroblock*, %struct.Macroblock*, int, [2 x [4 x [4 x [2 x int]]]], [16 x sbyte], [16 x sbyte], int, long, [4 x int], [4 x int], long, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, short, double, int, int, int, int, int, int, int, int, int }
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implementation ; Functions:
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internal fastcc int %dct_chroma(int %uv, int %cr_cbp) {
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entry:
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br bool false, label %bb2611, label %cond_true129
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cond_true129: ; preds = %entry
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ret int 0
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bb2611: ; preds = %entry
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br bool false, label %cond_true2732.preheader, label %cond_next2752
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cond_true2732.preheader: ; preds = %bb2611
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%tmp2666 = getelementptr %struct.Macroblock* null, int 0, uint 13 ; <long*> [#uses=2]
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%tmp2674 = cast int 0 to ubyte ; <ubyte> [#uses=1]
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br bool false, label %cond_true2732.preheader.split.us, label %cond_true2732.preheader.split
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cond_true2732.preheader.split.us: ; preds = %cond_true2732.preheader
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br bool false, label %cond_true2732.outer.us.us, label %cond_true2732.outer.us
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cond_true2732.outer.us.us: ; preds = %cond_true2732.preheader.split.us
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%tmp2667.us.us = load long* %tmp2666 ; <long> [#uses=1]
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%tmp2670.us.us = load long* null ; <long> [#uses=1]
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%tmp2675.us.us = shl long %tmp2670.us.us, ubyte %tmp2674 ; <long> [#uses=1]
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%tmp2675not.us.us = xor long %tmp2675.us.us, -1 ; <long> [#uses=1]
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%tmp2676.us.us = and long %tmp2667.us.us, %tmp2675not.us.us ; <long> [#uses=1]
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store long %tmp2676.us.us, long* %tmp2666
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ret int 0
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cond_true2732.outer.us: ; preds = %cond_true2732.preheader.split.us
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ret int 0
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cond_true2732.preheader.split: ; preds = %cond_true2732.preheader
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ret int 0
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cond_next2752: ; preds = %bb2611
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ret int 0
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}
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