[PATCH] D42749: [MachineOutliner] Freeze registers in new functions
Geoff Berry via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jan 31 10:46:32 PST 2018
gberry created this revision.
gberry added reviewers: MatzeB, qcolombet, paquette.
Herald added a subscriber: javed.absar.
Call MRI.freezeReservedRegs() on functions created during outlining so
that calls to isReserved() by the verifier called after this pass won't
assert.
Repository:
rL LLVM
https://reviews.llvm.org/D42749
Files:
lib/CodeGen/MachineOutliner.cpp
test/CodeGen/AArch64/machine-outliner.mir
Index: test/CodeGen/AArch64/machine-outliner.mir
===================================================================
--- test/CodeGen/AArch64/machine-outliner.mir
+++ test/CodeGen/AArch64/machine-outliner.mir
@@ -1,4 +1,4 @@
-# RUN: llc -mtriple=aarch64--- -run-pass=machine-outliner %s -o - | FileCheck %s
+# RUN: llc -mtriple=aarch64--- -run-pass=machine-outliner -verify-machineinstrs %s -o - | FileCheck %s
--- |
@x = common global i32 0, align 4
Index: lib/CodeGen/MachineOutliner.cpp
===================================================================
--- lib/CodeGen/MachineOutliner.cpp
+++ lib/CodeGen/MachineOutliner.cpp
@@ -62,6 +62,7 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineOptimizationRemarkEmitter.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
@@ -1311,6 +1312,7 @@
DB.finalize();
}
+ MF.getRegInfo().freezeReservedRegs(MF);
return &MF;
}
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