}
}
+bool AArch64InstrInfo::isSEHInstruction(const MachineInstr &MI) {
+ unsigned Opc = MI.getOpcode();
+ switch (Opc) {
+ default:
+ return false;
+ case AArch64::SEH_StackAlloc:
+ case AArch64::SEH_SaveFPLR:
+ case AArch64::SEH_SaveFPLR_X:
+ case AArch64::SEH_SaveReg:
+ case AArch64::SEH_SaveReg_X:
+ case AArch64::SEH_SaveRegP:
+ case AArch64::SEH_SaveRegP_X:
+ case AArch64::SEH_SaveFReg:
+ case AArch64::SEH_SaveFReg_X:
+ case AArch64::SEH_SaveFRegP:
+ case AArch64::SEH_SaveFRegP_X:
+ case AArch64::SEH_SetFP:
+ case AArch64::SEH_AddFP:
+ case AArch64::SEH_Nop:
+ case AArch64::SEH_PrologEnd:
+ case AArch64::SEH_EpilogStart:
+ case AArch64::SEH_EpilogEnd:
+ return true;
+ }
+}
+
bool AArch64InstrInfo::isCoalescableExtInstr(const MachineInstr &MI,
unsigned &SrcReg, unsigned &DstReg,
unsigned &SubIdx) const {
return false;
}
+bool AArch64InstrInfo::isSchedulingBoundary(const MachineInstr &MI,
+ const MachineBasicBlock *MBB,
+ const MachineFunction &MF) const {
+ if (TargetInstrInfo::isSchedulingBoundary(MI, MBB, MF))
+ return true;
+ return isSEHInstruction(MI);
+}
+
/// analyzeCompare - For a comparison instruction, return the source registers
/// in SrcReg and SrcReg2, and the value it compares against in CmpValue.
/// Return true if the comparison instruction can be analyzed.
unsigned FalseReg) const override;
void getNoop(MCInst &NopInst) const override;
+ bool isSchedulingBoundary(const MachineInstr &MI,
+ const MachineBasicBlock *MBB,
+ const MachineFunction &MF) const override;
+
/// analyzeCompare - For a comparison instruction, return the source registers
/// in SrcReg and SrcReg2, and the value it compares against in CmpValue.
/// Return true if the comparison instruction can be analyzed.
/// Returns true if the instruction has a shift by immediate that can be
/// executed in one cycle less.
bool isFalkorShiftExtFast(const MachineInstr &MI) const;
+ /// Return true if the instructions is a SEH instruciton used for unwinding
+ /// on Windows.
+ static bool isSEHInstruction(const MachineInstr &MI);
private:
/// Sets the offsets on outlined instructions in \p MBB which use SP
-# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog -filetype=obj -disable-post-ra \
+# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog -filetype=obj \
# RUN: | llvm-readobj -unwind | FileCheck %s
# This test case checks the basic validity of the .xdata section. It's
# documented at:
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -disable-post-ra -filetype=obj | llvm-readobj -unwind | FileCheck %s
+# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
# Test that the pre/post increment save of a flating point register is correct.
# CHECK: ExceptionData {
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -disable-post-ra -filetype=obj | llvm-readobj -unwind | FileCheck %s
+# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
# Test that the register pairing of both general purpose and floating point
# registers is correctly saved in the .xdata section, as well as the pre/post
# increment of floating point register pairs.
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -disable-branch-fold -disable-post-ra -filetype=obj \
+# RUN: -disable-branch-fold -filetype=obj \
# RUN: | llvm-readobj -unwind | FileCheck %s
# Check that multiple epilgoues are correctly placed in .xdata.
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -disable-post-ra -filetype=obj | llvm-readobj -unwind | FileCheck %s
+# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
# Check that that the large stack allocation is correctly represented in .xdata.
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -disable-post-ra -filetype=obj | llvm-readobj -unwind | FileCheck %s
+# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
# Check save_fplr_x, set_fp, alloc_s
# CHECK: ExceptionData {
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
-# RUN: -filetype=obj -disable-post-ra | llvm-readobj -unwind | FileCheck %s
+# RUN: -filetype=obj | llvm-readobj -unwind | FileCheck %s
# Check AddFP
# CHECK: ExceptionData {