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[opt] Error if -debug-pass is specified alongside the new PM

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Reviewed By: ychen

Differential Revision: https://reviews.llvm.org/D97810
This commit is contained in:
Arthur Eubanks 2021-03-02 14:49:46 -08:00
parent 15c77322ba
commit 83c7bddf7d
4 changed files with 16 additions and 0 deletions
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4
include/llvm/IR/LegacyPassManager.h
View File

@ -26,6 +26,10 @@ class Module;
namespace legacy {
// Whether or not -debug-pass has been specified. For use to check if it's
// specified alongside the new PM.
bool debugPassSpecified();
class PassManagerImpl;
class FunctionPassManagerImpl;

2
lib/IR/LegacyPassManager.cpp
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@ -242,6 +242,8 @@ void PassManagerPrettyStackEntry::print(raw_ostream &OS) const {
namespace llvm {
namespace legacy {
bool debugPassSpecified() { return PassDebugging != Disabled; }
//===----------------------------------------------------------------------===//
// FunctionPassManagerImpl
//

4
test/Other/debug-pass-npm.ll Normal file
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@ -0,0 +1,4 @@
; RUN: opt -enable-new-pm=0 -O1 %s -debug-pass=Structure
; RUN: not opt -enable-new-pm=1 -O1 %s -debug-pass=Structure 2>&1 | FileCheck %s
; CHECK: does not work

6
tools/opt/opt.cpp
View File

@ -775,6 +775,12 @@ int main(int argc, char **argv) {
"full list of passes, see the '--print-passes' flag.\n";
return 1;
}
if (legacy::debugPassSpecified()) {
errs()
<< "-debug-pass does not work with the new PM, either use "
"-debug-pass-manager, or use the legacy PM (-enable-new-pm=0)\n";
return 1;
}
if (PassPipeline.getNumOccurrences() > 0 && PassList.size() > 0) {
errs()
<< "Cannot specify passes via both -foo-pass and --passes=foo-pass\n";