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Fit in 80-cols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30556 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -544,9 +544,9 @@ entry:
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br label %cond_true
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cond_true: ; preds = %cond_true, %entry
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%x.0.0 = phi int [ 0, %entry ], [ %tmp9, %cond_true ] ; <int> [#uses=3]
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%t_addr.0.0 = phi int [ %t, %entry ], [ %tmp7, %cond_true ] ; <int> [#uses=1]
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%tmp2 = getelementptr int* %a, int %x.0.0 ; <int*> [#uses=1]
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%x.0.0 = phi int [ 0, %entry ], [ %tmp9, %cond_true ]
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%t_addr.0.0 = phi int [ %t, %entry ], [ %tmp7, %cond_true ]
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%tmp2 = getelementptr int* %a, int %x.0.0
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%tmp3 = load int* %tmp2 ; <int> [#uses=1]
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%tmp5 = add int %t_addr.0.0, %x.0.0 ; <int> [#uses=1]
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%tmp7 = add int %tmp5, %tmp3 ; <int> [#uses=2]
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@ -633,11 +633,12 @@ LBB1_1: #bb
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LBB1_2: #UnifiedReturnBlock
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ret
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In the code above, the 'if' is turned into a 'switch' at the mid-level. It looks
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like the 'lower to branches' mode could be improved a little here. In particular,
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the fall-through to LBB1_3 doesn't need a branch. It would also be nice to
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eliminate the redundant "cmp 6", maybe by lowering to a linear sequence of
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compares if there are below a certain number of cases (instead of a binary sequence)?
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In the code above, the 'if' is turned into a 'switch' at the mid-level. It
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looks like the 'lower to branches' mode could be improved a little here. In
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particular, the fall-through to LBB1_3 doesn't need a branch. It would also be
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nice to eliminate the redundant "cmp 6", maybe by lowering to a linear sequence
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of compares if there are below a certain number of cases (instead of a binary
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sequence)?
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//===---------------------------------------------------------------------===//
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@ -645,7 +646,7 @@ Compile:
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int %test(ulong *%tmp) {
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%tmp = load ulong* %tmp ; <ulong> [#uses=1]
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%tmp.mask = shr ulong %tmp, ubyte 50 ; <ulong> [#uses=1]
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%tmp.mask = cast ulong %tmp.mask to ubyte ; <ubyte> [#uses=1]
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%tmp.mask = cast ulong %tmp.mask to ubyte
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%tmp2 = and ubyte %tmp.mask, 3 ; <ubyte> [#uses=1]
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%tmp2 = cast ubyte %tmp2 to int ; <int> [#uses=1]
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ret int %tmp2
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