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| author | Juergen Ributzka <juergen@apple.com> | 2013-12-16 22:05:32 +0000 |
|---|---|---|
| committer | Juergen Ributzka <juergen@apple.com> | 2013-12-16 22:05:32 +0000 |
| commit | e77491226adefca4fe5aebb1e689c9d04903cc90 (patch) | |
| tree | 5166d6a57d44061db800c0728bcd29a7144a5dca /lib | |
| parent | 62fd16a2970c1265bb4de54a4973334903814686 (diff) | |
| download | llvm-e77491226adefca4fe5aebb1e689c9d04903cc90.tar.gz llvm-e77491226adefca4fe5aebb1e689c9d04903cc90.tar.bz2 llvm-e77491226adefca4fe5aebb1e689c9d04903cc90.tar.xz | |
[Stackmap] Allow WebKit_JS calling convention to store 4 byte sized and aligned arguments.
This allows the WebKit_JS calling convention to perform partial writes on a 4
byte granularity to stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197431 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86CallingConv.td | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td index ef8caa0290..6185c1cd38 100644 --- a/lib/Target/X86/X86CallingConv.td +++ b/lib/Target/X86/X86CallingConv.td @@ -358,12 +358,15 @@ def CC_X86_64_WebKit_JS : CallingConv<[ CCIfType<[i8, i16], CCPromoteToType<i32>>, // Only the first integer argument is passed in register. - CCIfType<[i32], CCAssignToReg<[EDI]>>, - CCIfType<[i64], CCAssignToReg<[RDI]>>, + CCIfType<[i32], CCAssignToReg<[EAX]>>, + CCIfType<[i64], CCAssignToReg<[RAX]>>, - // 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>> + // The remaining integer arguments are passed on the stack. 32bit integer and + // floating-point arguments are aligned to 4 byte and stored in 4 byte slots. + // 64bit integer and floating-point arguments are aligned to 8 byte and stored + // in 8 byte stack slots. + CCIfType<[i32, f32], CCAssignToStack<4, 4>>, + CCIfType<[i64, f64], CCAssignToStack<8, 8>> ]>; // No explicit register is specified for the AnyReg calling convention. The |