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view tests/mini/asm2.d @ 1318:bac742d3a72d
Make sure this testcase keeps crashing with -O3.
Recent optimization improvements made LLVM realize the store-to-null was
unavoidable, so it deleted all of main() and replaced it with 'unreachable'.
Because the body of main() no longer even contained a return instruction,
calling it caused random code to be ran instead. This happened to be the code
that links in the ModuleInfo on my machine, which then returned "successfully".
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Sat, 09 May 2009 00:55:47 +0200 |
parents | 12b423e17860 |
children |
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module tangotests.asm2; extern(C) int printf(char*, ...); int main() { int i = 40; int j = 2; version(D_InlineAsm_X86) { asm { mov EAX, i; mov EBX, j; add EAX, EBX; mov i, EAX; } } else version(D_InlineAsm_X86_64) { asm { mov EAX, i; mov EBX, j; add EAX, EBX; mov i, EAX; } } printf("42 = %d\n", i); assert(i == 42); return 0; }