diff options
Diffstat (limited to 'src/cpu/x86')
-rw-r--r-- | src/cpu/x86/vm/macroAssembler_x86.cpp | 4 | ||||
-rw-r--r-- | src/cpu/x86/vm/x86_32.ad | 6 | ||||
-rw-r--r-- | src/cpu/x86/vm/x86_64.ad | 6 |
3 files changed, 13 insertions, 3 deletions
diff --git a/src/cpu/x86/vm/macroAssembler_x86.cpp b/src/cpu/x86/vm/macroAssembler_x86.cpp index d6f179770..b3a72ab0e 100644 --- a/src/cpu/x86/vm/macroAssembler_x86.cpp +++ b/src/cpu/x86/vm/macroAssembler_x86.cpp @@ -6143,7 +6143,9 @@ void MacroAssembler::verified_entry(int framesize, int stack_bang_size, bool fp_ // Save caller's stack pointer into RBP if the frame pointer is preserved. if (PreserveFramePointer) { movptr(rbp, rsp); - addptr(rbp, framesize + wordSize); + if (framesize > 0) { + addptr(rbp, framesize); + } } } diff --git a/src/cpu/x86/vm/x86_32.ad b/src/cpu/x86/vm/x86_32.ad index 6575ceca2..42aba5b21 100644 --- a/src/cpu/x86/vm/x86_32.ad +++ b/src/cpu/x86/vm/x86_32.ad @@ -566,7 +566,11 @@ void MachPrologNode::format(PhaseRegAlloc* ra_, outputStream* st) const { st->print("MOV [ESP + #%d], EBP\t# Save EBP",framesize); if (PreserveFramePointer) { st->print("\n\t"); - st->print("MOV EBP, [ESP + #%d]\t# Save the caller's SP into EBP", (framesize + wordSize)); + st->print("MOV EBP, ESP\t# Save the caller's SP into EBP"); + if (framesize > 0) { + st->print("\n\t"); + st->print("ADD EBP, #%d", framesize); + } } } diff --git a/src/cpu/x86/vm/x86_64.ad b/src/cpu/x86/vm/x86_64.ad index 49b3ec54e..52bc63507 100644 --- a/src/cpu/x86/vm/x86_64.ad +++ b/src/cpu/x86/vm/x86_64.ad @@ -863,7 +863,11 @@ void MachPrologNode::format(PhaseRegAlloc* ra_, outputStream* st) const { st->print("movq [rsp + #%d], rbp\t# Save rbp",framesize); if (PreserveFramePointer) { st->print("\n\t"); - st->print("movq rbp, [rsp + #%d]\t# Save the caller's SP into rbp", (framesize + wordSize)); + st->print("movq rbp, rsp\t# Save the caller's SP into rbp"); + if (framesize > 0) { + st->print("\n\t"); + st->print("addq rbp, #%d", framesize); + } } } |