diff options
Diffstat (limited to 'lib/Target/X86/X86CallingConv.td')
| -rw-r--r-- | lib/Target/X86/X86CallingConv.td | 57 |
1 files changed, 51 insertions, 6 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index 38e2591..a78b5c0 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -151,6 +151,26 @@ def RetCC_X86_64_HiPE : CallingConv<[ CCIfType<[i64], CCAssignToReg<[R15, RBP, RAX, RDX]>> ]>; +// X86-64 WebKit_JS return-value convention. +def RetCC_X86_64_WebKit_JS : CallingConv<[ + // Promote all types to i64 + CCIfType<[i8, i16, i32], CCPromoteToType<i64>>, + + // Return: RAX + CCIfType<[i64], CCAssignToReg<[RAX]>> +]>; + +// X86-64 AnyReg return-value convention. No explicit register is specified for +// the return-value. The register allocator is allowed and expected to choose +// any free register. +// +// This calling convention is currently only supported by the stackmap and +// patchpoint intrinsics. All other uses will result in an assert on Debug +// builds. On Release builds we fallback to the X86 C calling convention. +def RetCC_X86_64_AnyReg : CallingConv<[ + CCCustom<"CC_X86_AnyReg_Error"> +]>; + // This is the root return-value convention for the X86-32 backend. def RetCC_X86_32 : CallingConv<[ // If FastCC, use RetCC_X86_32_Fast. @@ -167,6 +187,10 @@ def RetCC_X86_64 : CallingConv<[ // HiPE uses RetCC_X86_64_HiPE CCIfCC<"CallingConv::HiPE", CCDelegateTo<RetCC_X86_64_HiPE>>, + // Handle JavaScript calls. + CCIfCC<"CallingConv::WebKit_JS", CCDelegateTo<RetCC_X86_64_WebKit_JS>>, + CCIfCC<"CallingConv::AnyReg", CCDelegateTo<RetCC_X86_64_AnyReg>>, + // Handle explicit CC selection CCIfCC<"CallingConv::X86_64_Win64", CCDelegateTo<RetCC_X86_Win64_C>>, CCIfCC<"CallingConv::X86_64_SysV", CCDelegateTo<RetCC_X86_64_C>>, @@ -279,10 +303,10 @@ def CC_X86_Win64_C : CallingConv<[ // The first 4 integer arguments are passed in integer registers. CCIfType<[i32], CCAssignToRegWithShadow<[ECX , EDX , R8D , R9D ], [XMM0, XMM1, XMM2, XMM3]>>, - + // Do not pass the sret argument in RCX, the Win64 thiscall calling - // convention requires "this" to be passed in RCX. - CCIfCC<"CallingConv::X86_ThisCall", + // convention requires "this" to be passed in RCX. + CCIfCC<"CallingConv::X86_ThisCall", CCIfSRet<CCIfType<[i64], CCAssignToRegWithShadow<[RDX , R8 , R9 ], [XMM1, XMM2, XMM3]>>>>, @@ -329,6 +353,25 @@ def CC_X86_64_HiPE : CallingConv<[ CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>> ]>; +def CC_X86_64_WebKit_JS : CallingConv<[ + // Promote i8/i16 arguments to i32. + CCIfType<[i8, i16], CCPromoteToType<i32>>, + + // Integer/FP values are always stored in stack slots that are 8 bytes in size + // and 8-byte aligned. + CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>> +]>; + +// No explicit register is specified for the AnyReg calling convention. The +// register allocator may assign the arguments to any free register. +// +// This calling convention is currently only supported by the stackmap and +// patchpoint intrinsics. All other uses will result in an assert on Debug +// builds. On Release builds we fallback to the X86 C calling convention. +def CC_X86_64_AnyReg : CallingConv<[ + CCCustom<"CC_X86_AnyReg_Error"> +]>; + //===----------------------------------------------------------------------===// // X86 C Calling Convention //===----------------------------------------------------------------------===// @@ -354,7 +397,7 @@ 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>>, @@ -520,6 +563,8 @@ def CC_X86_32 : CallingConv<[ def CC_X86_64 : CallingConv<[ CCIfCC<"CallingConv::GHC", CCDelegateTo<CC_X86_64_GHC>>, CCIfCC<"CallingConv::HiPE", CCDelegateTo<CC_X86_64_HiPE>>, + CCIfCC<"CallingConv::WebKit_JS", CCDelegateTo<CC_X86_64_WebKit_JS>>, + CCIfCC<"CallingConv::AnyReg", CCDelegateTo<CC_X86_64_AnyReg>>, CCIfCC<"CallingConv::X86_64_Win64", CCDelegateTo<CC_X86_Win64_C>>, CCIfCC<"CallingConv::X86_64_SysV", CCDelegateTo<CC_X86_64_C>>, @@ -558,11 +603,11 @@ def CSR_MostRegs_64 : CalleeSavedRegs<(add RBX, RCX, RDX, RSI, RDI, R8, R9, R10, // Standard C + YMM6-15 def CSR_Win64_Intel_OCL_BI_AVX : CalleeSavedRegs<(add RBX, RBP, RDI, RSI, R12, - R13, R14, R15, + R13, R14, R15, (sequence "YMM%u", 6, 15))>; def CSR_Win64_Intel_OCL_BI_AVX512 : CalleeSavedRegs<(add RBX, RBP, RDI, RSI, - R12, R13, R14, R15, + R12, R13, R14, R15, (sequence "ZMM%u", 6, 21), K4, K5, K6, K7)>; //Standard C + XMM 8-15 |