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https://github.com/c64scene-ar/llvm-6502.git
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3da59db637
The long awaited CAST patch. This introduces 12 new instructions into LLVM to replace the cast instruction. Corresponding changes throughout LLVM are provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the exception of 175.vpr which fails only on a slight floating point output difference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
719 B
LLVM
23 lines
719 B
LLVM
; XFAIL: *
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; this testcase is distilled from this C source:
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; int *foo(unsigned N, unsigned M) {
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; unsigned i = (N+1)*sizeof(int);
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; unsigned j = (M+1)*sizeof(int);
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; return (int*)malloc(i+j);
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; }
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; RUN: llvm-as < %s | opt -raise | llvm-dis | not grep bitcast
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implementation
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int* %test(uint %N, uint %M) {
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%reg111 = shl uint %N, ubyte 2 ; <uint> [#uses=1]
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%reg109 = add uint %reg111, 4 ; <uint> [#uses=1]
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%reg114 = shl uint %M, ubyte 2 ; <uint> [#uses=1]
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%reg112 = add uint %reg114, 4 ; <uint> [#uses=1]
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%reg116 = add uint %reg109, %reg112 ; <uint> [#uses=1]
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%reg117 = malloc sbyte, uint %reg116 ; <sbyte*> [#uses=1]
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%cast221 = cast sbyte* %reg117 to int* ; <int*> [#uses=1]
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ret int* %cast221
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}
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