tor-browser

commit 9bb68e9509ebbd91f0b46e7173f33dad42a9bff1
parent f626051b39941931dcfa232c9e7a43ae1c3e6127
Author: André Bargull <andre.bargull@gmail.com>
Date:   Tue,  4 Nov 2025 16:01:13 +0000

Bug 1997936: LUDiv and LUMod for arm32 don't need deferred initialisation. r=spidermonkey-reviewers,iain

Differential Revision: https://phabricator.services.mozilla.com/D271078

Diffstat:
M
js/src/jit/LIROps.yaml
 | 
2
--
M
js/src/jit/arm/Lowering-arm.cpp
 | 
12
++++--------

2 files changed, 4 insertions(+), 10 deletions(-)
diff --git a/js/src/jit/LIROps.yaml b/js/src/jit/LIROps.yaml
@@ -4325,7 +4325,6 @@
     lhs: WordSized
     rhs: WordSized
   mir_op: Div
-  defer_init: true
 
 - name: UMod
   result_type: WordSized
@@ -4333,7 +4332,6 @@
     lhs: WordSized
     rhs: WordSized
   mir_op: Mod
-  defer_init: true
 
 - name: SoftUDivOrMod
   result_type: WordSized
diff --git a/js/src/jit/arm/Lowering-arm.cpp b/js/src/jit/arm/Lowering-arm.cpp
@@ -576,9 +576,7 @@ void LIRGeneratorARM::lowerUDiv(MDiv* div) {
   MDefinition* rhs = div->getOperand(1);
 
   if (ARMFlags::HasIDIV()) {
-    LUDiv* lir = new (alloc()) LUDiv;
-    lir->setOperand(0, useRegister(lhs));
-    lir->setOperand(1, useRegister(rhs));
+    auto* lir = new (alloc()) LUDiv(useRegister(lhs), useRegister(rhs));
     if (div->fallible()) {
       assignSnapshot(lir, div->bailoutKind());
     }
@@ -586,7 +584,7 @@ void LIRGeneratorARM::lowerUDiv(MDiv* div) {
     return;
   }
 
-  LSoftUDivOrMod* lir = new (alloc())
+  auto* lir = new (alloc())
       LSoftUDivOrMod(useFixedAtStart(lhs, r0), useFixedAtStart(rhs, r1));
 
   if (div->fallible()) {
@@ -601,9 +599,7 @@ void LIRGeneratorARM::lowerUMod(MMod* mod) {
   MDefinition* rhs = mod->getOperand(1);
 
   if (ARMFlags::HasIDIV()) {
-    LUMod* lir = new (alloc()) LUMod;
-    lir->setOperand(0, useRegister(lhs));
-    lir->setOperand(1, useRegister(rhs));
+    auto* lir = new (alloc()) LUMod(useRegister(lhs), useRegister(rhs));
     if (mod->fallible()) {
       assignSnapshot(lir, mod->bailoutKind());
     }
@@ -611,7 +607,7 @@ void LIRGeneratorARM::lowerUMod(MMod* mod) {
     return;
   }
 
-  LSoftUDivOrMod* lir = new (alloc())
+  auto* lir = new (alloc())
       LSoftUDivOrMod(useFixedAtStart(lhs, r0), useFixedAtStart(rhs, r1));
 
   if (mod->fallible()) {