[llvm-commits] [llvm] r59274 - /llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp

[Evan Cheng]

Author: evancheng
Date: Thu Nov 13 17:28:54 2008
New Revision: 59274

URL: http://llvm.org/viewvc/llvm-project?rev=59274&view=rev
Log:
Lazy compilation callback save / restore VFP registers.

Modified:
    llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp?rev=59274&r1=59273&r2=59274&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMJITInfo.cpp Thu Nov 13 17:28:54 2008
@@ -60,6 +60,9 @@
     // 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 @@
     //      +--------+    
     //   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.