[ARM] Make -mcpu=generic schedule for an in-order core (Cortex-A8).
The benchmarking summarized in
http://lists.llvm.org/pipermail/llvm-dev/2017-May/113525.html showed
this is beneficial for a wide range of cores.
As is to be expected, quite a few small adaptations are needed to the
regressions tests, as the difference in scheduling results in:
- Quite a few small instruction schedule differences.
- A few changes in register allocation decisions caused by different
instruction schedules.
- A few changes in IfConversion decisions, due to a difference in
instruction schedule and/or the estimated cost of a branch mispredict.
llvm-svn: 306514
diff --git a/llvm/test/CodeGen/ARM/jump-table-islands.ll b/llvm/test/CodeGen/ARM/jump-table-islands.ll
index 6b4f174..755ca30 100644
--- a/llvm/test/CodeGen/ARM/jump-table-islands.ll
+++ b/llvm/test/CodeGen/ARM/jump-table-islands.ll
@@ -13,7 +13,7 @@
; CHECK: .long LBB{{[0-9]+_[0-9]+}}-[[JUMP_TABLE]]
; CHECK: [[SKIP_TABLE]]:
-; CHECK: add pc, {{r[0-9]+}}, {{r[0-9]+}}
+; CHECK: add pc, {{r[0-9]+|lr}}, {{r[0-9]+|lr}}
br i1 %tst, label %simple, label %complex
simple: