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SSE varargs arguments are passed in memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46262 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -190,8 +190,8 @@ def CC_X86_32_Common : CallingConv<[
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CCIfType<[f80], CCAssignToStack<0, 4>>,
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// The first 4 vector arguments are passed in XMM registers.
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CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
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CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>,
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CCIfNotVarArg<CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
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CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>>,
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// Other vectors get 16-byte stack slots that are 16-byte aligned.
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CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
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9
test/CodeGen/X86/sse-varargs.ll
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9
test/CodeGen/X86/sse-varargs.ll
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@ -0,0 +1,9 @@
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; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep xmm | grep esp
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define i32 @t() nounwind {
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entry:
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tail call void (i32, ...)* @foo( i32 1, <4 x i32> < i32 10, i32 11, i32 12, i32 13 > ) nounwind
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ret i32 0
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}
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declare void @foo(i32, ...)
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