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SSE varargs arguments are passed in memory.

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llvm-svn: 46262
This commit is contained in:
Evan Cheng 2008-01-22 23:26:53 +00:00
parent 77b77f347a
commit d436c2e724
2 changed files with 11 additions and 2 deletions
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4
lib/Target/X86/X86CallingConv.td
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@ -190,8 +190,8 @@ def CC_X86_32_Common : CallingConv<[
CCIfType<[f80], CCAssignToStack<0, 4>>,
// The first 4 vector arguments are passed in XMM registers.
CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>,
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.
CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,

9
test/CodeGen/X86/sse-varargs.ll Normal file
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@ -0,0 +1,9 @@
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep xmm | grep esp
define i32 @t() nounwind {
entry:
tail call void (i32, ...)* @foo( i32 1, <4 x i32> < i32 10, i32 11, i32 12, i32 13 > ) nounwind
ret i32 0
}
declare void @foo(i32, ...)