commit 1bfc46ec2bfb68d84a41ca7f07418642285038e5
author Ryan Macnak <rmacnak@google.com> Thu Jul 08 22:33:34 2021 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> Thu Jul 08 22:33:34 2021 +0000
tree c8bba7de801c3d99c73fa8863cac5f110d3f929e
parent ea78e2baa8b3495bd91f7d9e00285f85de0f5e6e

[vm, compiler] Fix TestSmiInstr on X64 with compressed pointers.

Fixes various utf8 decoding tests.

TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/46468
Change-Id: I5ddc03cf72043da64a1107b59ef350f995e4a00b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/206323
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>

runtime/vm/compiler/assembler/assembler_x64.h

diff --git a/runtime/vm/compiler/assembler/assembler_x64.h b/runtime/vm/compiler/assembler/assembler_x64.h
index a8b539a..c9fb518 100644
--- a/runtime/vm/compiler/assembler/assembler_x64.h
+++ b/runtime/vm/compiler/assembler/assembler_x64.h
@@ -562,7 +562,9 @@
     return CompareImmediate(reg, Immediate(immediate), width);
   }
 
-  void testl(Register reg, const Immediate& imm) { testq(reg, imm); }
+  void testl(Register reg, const Immediate& imm) {
+    testq(reg, Immediate(imm.value() & 0xFFFFFFFF));
+  }
   void testb(const Address& address, const Immediate& imm);
   void testb(const Address& address, Register reg);