RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2024-12-14 07:31:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Lazy compilation callback save / restore VFP registers.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59274 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-11-13 23:28:54 +00:00
parent d23e0f81bc
commit 28f312949e
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/Target/ARM/ARMJITInfo.cpp
View File

@ -60,6 +60,9 @@ extern "C" {
// whole compilation callback doesn't exist as far as the caller is
// concerned, so we can't just preserve the callee saved regs.
"stmdb sp!, {r0, r1, r2, r3, lr}\n"
#ifdef __APPLE__
"fstmfdd sp!, {d0, d1, d2, d3, d4, d5, d6, d7}\n"
#endif
// The LR contains the address of the stub function on entry.
// pass it as the argument to the C part of the callback
"mov r0, lr\n"
@ -77,8 +80,14 @@ extern "C" {
// +--------+
// 1 | LR | Stub address (start of stub)
// 2-5 | R3..R0 | Saved registers (we need to preserve all regs)
// 6-20 | D0..D7 | Saved VFP registers
// +--------+
//
#ifdef __APPLE__
// Restore VFP caller-saved registers.
"fldmfdd sp!, {d0, d1, d2, d3, d4, d5, d6, d7}\n"
#endif
//
// We need to exchange the values in slots 0 and 1 so we can
// return to the address in slot 1 with the address in slot 0
// restored to the LR.