commit dab1af86db75ee38c34464ac02b27444d27712c3
author Stephen Adams <sra@google.com> Fri Aug 22 17:13:11 2025 -0700
committer Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> Fri Aug 22 17:13:11 2025 -0700
tree e3b8c744d745a58e5ceae5ae729b55baacac759e
parent bd691da600ff4ae12bd3b947fe00b6056423dc94

[dart2js] Fix ssa tracer

Sometimes the instruction contains newlines (from constant values or
abstract values) which leads to malformed .cfg files.

Change-Id: I2d8a05c97065fae19c42fd914817ff2b75bc7bf3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/446360
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Nate Biggs <natebiggs@google.com>
Auto-Submit: Stephen Adams <sra@google.com>

pkg/compiler/lib/src/ssa/tracer.dart

diff --git a/pkg/compiler/lib/src/ssa/tracer.dart b/pkg/compiler/lib/src/ssa/tracer.dart
index 1a10da2..329850d 100644
--- a/pkg/compiler/lib/src/ssa/tracer.dart
+++ b/pkg/compiler/lib/src/ssa/tracer.dart
@@ -101,6 +101,7 @@
       addIndent();
       String temporaryId = stringifier.temporaryId(instruction);
       String instructionString = stringifier.visit(instruction);
+      instructionString = instructionString.replaceAll('\n', r'\n');
       add("$bci $uses $temporaryId $instructionString $changes $depends <|@\n");
     }
   }