From: Dan Gohman Date: Wed, 9 Apr 2008 17:54:37 +0000 (+0000) Subject: Add XMM1 as a second return value register for f32 and f64 on x86-64. This X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=c2ffd4b1cbf4f3c6bee973a5debd848b32b54a2b;p=oota-llvm.git Add XMM1 as a second return value register for f32 and f64 on x86-64. This is needed for the x86-64-ABI handling of structs that contain floating-point members that are returned by value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49441 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index dc2105327ca..8a580df6ae6 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -65,16 +65,16 @@ def RetCC_X86_32_Fast : CallingConv<[ def RetCC_X86_32_SSE : CallingConv<[ // The X86-32 sseregparm calling convention returns FP values in XMM0 if the // target has SSE2, otherwise it is the C calling convention. - CCIfType<[f32], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0]>>>, - CCIfType<[f64], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0]>>>, + CCIfType<[f32], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0, XMM1]>>>, + CCIfType<[f64], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0, XMM1]>>>, CCDelegateTo ]>; // X86-64 C return-value convention. def RetCC_X86_64_C : CallingConv<[ // The X86-64 calling convention always returns FP values in XMM0. - CCIfType<[f32], CCAssignToReg<[XMM0]>>, - CCIfType<[f64], CCAssignToReg<[XMM0]>>, + CCIfType<[f32], CCAssignToReg<[XMM0, XMM1]>>, + CCIfType<[f64], CCAssignToReg<[XMM0, XMM1]>>, CCDelegateTo ]>;