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47 lines
1.6 KiB
LLVM
47 lines
1.6 KiB
LLVM
; This example was not getting level raised because of a negative index from
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; this instruction:
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; %reg111 = add int %reg110, -12
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; this testcase is distilled from this C source:
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; void foo(int j, int *x) {
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; unsigned i;
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; for (i = 12; i < 14; ++i)
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; x[j*i-12] = j;
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; }
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; RUN: llvm-as < %s | opt -raise | llvm-dis | grep ' cast ' | not grep '*'
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implementation
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void "foo"(int %j, int * %x)
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begin
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bb0: ;[#uses=0]
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br label %bb1
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bb1: ;[#uses=2]
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%reg108 = cast int * %x to sbyte * ; <sbyte *> [#uses=1]
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%cond219 = setgt ulong 12, 13 ; <bool> [#uses=1]
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br bool %cond219, label %bb3, label %bb2
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bb2: ;[#uses=3]
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%cann-indvar = phi uint [ 0, %bb1 ], [ %add1-indvar, %bb2 ] ; <uint> [#uses=2]
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%reg117 = add uint %cann-indvar, 12 ; <uint> [#uses=2]
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%add1-indvar = add uint %cann-indvar, 1 ; <uint> [#uses=1]
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%cast224 = cast uint %reg117 to uint ; <uint> [#uses=1]
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%cast225 = cast uint %reg117 to int ; <int> [#uses=1]
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%reg110 = mul int %j, %cast225 ; <int> [#uses=1]
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%reg111 = add int %reg110, -12 ; <int> [#uses=1]
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%cast222 = cast int %reg111 to uint ; <uint> [#uses=1]
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%reg113 = shl uint %cast222, ubyte 2 ; <uint> [#uses=1]
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%cast114 = cast uint %reg113 to ulong ; <ulong> [#uses=1]
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%cast115 = cast ulong %cast114 to sbyte * ; <sbyte *> [#uses=1]
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%reg116 = add sbyte * %reg108, %cast115 ; <sbyte *> [#uses=1]
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%cast223 = cast sbyte * %reg116 to int * ; <int *> [#uses=1]
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store int %j, int * %cast223
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%reg118 = add uint %cast224, 1 ; <uint> [#uses=1]
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%cond220 = setle uint %reg118, 13 ; <bool> [#uses=1]
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br bool %cond220, label %bb2, label %bb3
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bb3: ;[#uses=2]
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ret void
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end
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