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view tests/mini/callingconv1.d @ 1346:6f4154b318ef
Remove an old workaround that was kept around for ABI-compatibility on x86-64
between different LLVM versions.
This means LLVM r67588 is required if you want to compile for x86-64, otherwise
the backend will assert when you try to return e.g. struct { int i; char c; }
from a function. (In particular, this is no longer compatible with LLVM 2.5)
It also means that any code returning small structs on x86-64 will probably
need to be recompiled in order to be linkable to code compiled with this change.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Tue, 12 May 2009 15:50:48 +0200 |
parents | 12b423e17860 |
children | a400b1dd657f |
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line source
module mini.callingconv1; extern(C) int printf(char*, ...); float foo(float a, float b) { return a + b; } void main() { float a = 1.5; float b = 2.5; float c; version(D_InlineAsm_X86) { asm { mov EAX, [a]; push EAX; mov EAX, [b]; push EAX; call foo; fstp c; } } else version(D_InlineAsm_X86_64) { asm { movss XMM0, [a]; movss XMM1, [b]; call foo; movss [c], XMM0; } } printf("%f\n", c); assert(c == 4.0); printf("passed %f\n", c); }