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Match GCC's MMX calling convention.

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llvm-svn: 35523
This commit is contained in:
Bill Wendling 2007-03-31 01:03:53 +00:00
parent bafc837c83
commit afddb2c6f8
1 changed files with 4 additions and 0 deletions
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4
llvm/lib/Target/X86/X86CallingConv.td
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@ -101,6 +101,10 @@ def CC_X86_64_C : CallingConv<[
CCIfType<[f32, f64, v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
CCAssignToReg<[XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7]>>,
// The first 8 MMX vector arguments are passed in MMX registers.
CCIfType<[v8i8, v4i16, v2i32, v1i64],
CCAssignToReg<[RDI, RSI, RDX, RCX, R8 , R9 ]>>,
// Integer/FP values get stored in stack slots that are 8 bytes in size and
// 8-byte aligned if there are no more registers to hold them.
CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>,