mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-18 12:29:21 +00:00
we're in a single-mbb loop, make sure to emit the backwards branch as the conditional branch instead of the uncond branch. For example, emit this: LBBl29_z__44: stw r9, 0(r15) stw r9, 4(r15) stw r9, 8(r15) stw r9, 12(r15) addi r15, r15, 16 addi r8, r8, 1 cmpw cr0, r8, r28 ble cr0, LBBl29_z__44 b LBBl29_z__48 *** NOT PART OF LOOP Instead of: LBBl29_z__44: stw r9, 0(r15) stw r9, 4(r15) stw r9, 8(r15) stw r9, 12(r15) addi r15, r15, 16 addi r8, r8, 1 cmpw cr0, r8, r28 bgt cr0, LBBl29_z__48 *** PART OF LOOP! b LBBl29_z__44 The former sequence has one fewer dispatch group for the loop body. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23582 91177308-0d34-0410-b5e6-96231b3b80d8 |
||
---|---|---|
.. | ||
Alpha | ||
CBackend | ||
IA64 | ||
PowerPC | ||
Skeleton | ||
Sparc | ||
SparcV8 | ||
SparcV9 | ||
X86 | ||
Makefile | ||
MRegisterInfo.cpp | ||
SubtargetFeature.cpp | ||
Target.td | ||
TargetData.cpp | ||
TargetFrameInfo.cpp | ||
TargetInstrInfo.cpp | ||
TargetMachine.cpp | ||
TargetMachineRegistry.cpp | ||
TargetSchedInfo.cpp | ||
TargetSubtarget.cpp |