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Add new calling convention for WebKit Java Script.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193812 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2013-10-31 22:12:01 +00:00
parent 3d74dea4bd
commit 2ddc56dec8
6 changed files with 49 additions and 0 deletions
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22
lib/Target/X86/X86CallingConv.td
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@@ -151,6 +151,15 @@ 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]>>
]>;
// 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 +176,9 @@ 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>>,
// Handle explicit CC selection
CCIfCC<"CallingConv::X86_64_Win64", CCDelegateTo<RetCC_X86_Win64_C>>,
CCIfCC<"CallingConv::X86_64_SysV", CCDelegateTo<RetCC_X86_64_C>>,
@@ -329,6 +341,15 @@ 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>>
]>;
//===----------------------------------------------------------------------===//
// X86 C Calling Convention
//===----------------------------------------------------------------------===//
@@ -520,6 +541,7 @@ 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::X86_64_Win64", CCDelegateTo<CC_X86_Win64_C>>,
CCIfCC<"CallingConv::X86_64_SysV", CCDelegateTo<CC_X86_64_C>>,