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MMX vectors are passed 4-byte aligned.

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llvm-svn: 47483
This commit is contained in:
Dale Johannesen 2008-02-22 17:47:28 +00:00
parent fd4b209731
commit 23a6f7fc1f
1 changed files with 4 additions and 4 deletions
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8
lib/Target/X86/X86CallingConv.td
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@ -203,16 +203,16 @@ def CC_X86_32_Common : CallingConv<[
// Long doubles get slots whose size depends on the subtarget.
CCIfType<[f80], CCAssignToStack<0, 4>>,
// The first 4 vector arguments are passed in XMM registers.
// The first 4 SSE vector arguments are passed in XMM registers.
CCIfNotVarArg<CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>>,
// Other vectors get 16-byte stack slots that are 16-byte aligned.
// Other SSE vectors get 16-byte stack slots that are 16-byte aligned.
CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
// __m64 vectors get 8-byte stack slots that are 8-byte aligned. They are
// __m64 vectors get 8-byte stack slots that are 4-byte aligned. They are
// passed in the parameter area.
CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToStack<8, 8>>
CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToStack<8, 4>>
]>;
def CC_X86_32_C : CallingConv<[