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author | Chris Lattner <sabre@nondot.org> | 2007-02-28 06:20:01 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2007-02-28 06:20:01 +0000 |
commit | 011bcc8cdddf9693f01c854bb47133f9ed7092a4 (patch) | |
tree | ced17c345ce4c33cb6a360aa2bfe352ade8fa5ad /lib/Target/X86/X86CallingConv.td | |
parent | fcf1a3de7a54d410678654bdbcd58b5bc924759c (diff) | |
download | llvm-011bcc8cdddf9693f01c854bb47133f9ed7092a4.tar.gz llvm-011bcc8cdddf9693f01c854bb47133f9ed7092a4.tar.bz2 llvm-011bcc8cdddf9693f01c854bb47133f9ed7092a4.tar.xz |
add new CC_X86_32_FastCall calling conv, which describes fastcall on win32.
Factor out a CC_X86_32_Common convention, which is the part shared between
ccc, stdcall and fastcall
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34732 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86CallingConv.td')
-rw-r--r-- | lib/Target/X86/X86CallingConv.td | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index 04a79043fd..f96b040461 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -111,22 +111,18 @@ def CC_X86_64_C : CallingConv<[ // X86 C Calling Convention //===----------------------------------------------------------------------===// -def CC_X86_32_C : CallingConv<[ - // Promote i8/i16 arguments to i32. - CCIfType<[i8, i16], CCPromoteToType<i32>>, - - // The first 3 integer arguments, if marked 'inreg', are passed in integer - // registers. - CCIfInReg<CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>>, - - // Other Integer/Float values get stored in stack slots that are 4 bytes in +/// CC_X86_32_Common - In all X86-32 calling conventions, extra integers and FP +/// values are spilled on the stack, and the first 4 vector values go in XMM +/// regs. +def CC_X86_32_Common : CallingConv<[ + // Integer/Float values get stored in stack slots that are 4 bytes in // size and 4-byte aligned. CCIfType<[i32, f32], CCAssignToStack<4, 4>>, // Doubles get 8-byte slots that are 4-byte aligned. CCIfType<[f64], CCAssignToStack<8, 4>>, - // The first 4 Vector arguments are passed in XMM registers. + // The first 4 vector arguments are passed in XMM registers. CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>, @@ -134,5 +130,28 @@ def CC_X86_32_C : CallingConv<[ CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>> ]>; +def CC_X86_32_C : CallingConv<[ + // Promote i8/i16 arguments to i32. + CCIfType<[i8, i16], CCPromoteToType<i32>>, + + // The first 3 integer arguments, if marked 'inreg', are passed in integer + // registers. + CCIfInReg<CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>>, + + // Otherwise, same as everything else. + CCDelegateTo<CC_X86_32_Common> +]>; + + +def CC_X86_32_FastCall : CallingConv<[ + // Promote i8/i16 arguments to i32. + CCIfType<[i8, i16], CCPromoteToType<i32>>, + + // The first 2 integer arguments are passed in ECX/EDX + CCIfInReg<CCIfType<[i32], CCAssignToReg<[ECX, EDX]>>>, + + // Otherwise, same as everything else. + CCDelegateTo<CC_X86_32_Common> +]>; |