8830740643
* gnu/packages/patches/icecat-CVE-2015-0822.patch, gnu/packages/patches/icecat-CVE-2015-0827-pt-1.patch, gnu/packages/patches/icecat-CVE-2015-0827-pt-2.patch, gnu/packages/patches/icecat-CVE-2015-0827-pt-3.patch, gnu/packages/patches/icecat-CVE-2015-0831-pt-1.patch, gnu/packages/patches/icecat-CVE-2015-0831-pt-2.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-01.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-02.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-03.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-04.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-05.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-06.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-07.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-08.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-09.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-10.patch, gnu/packages/patches/icecat-CVE-2015-0836-pt-11.patch: New files. * gnu-system.am (dist_patch_DATA): Add them. * gnu/packages/gnuzilla.scm (icecat)[source]: Add patches.
105 lines
3.3 KiB
Diff
105 lines
3.3 KiB
Diff
From 3f0f685829445ae82974d61f6017fdb67349c32b Mon Sep 17 00:00:00 2001
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From: Dan Gohman <sunfish@mozilla.com>
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Date: Fri, 9 Jan 2015 09:04:12 -0500
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Subject: [PATCH] Bug 1096138 - IonMonkey: Augment Nops with Mops to avoid
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collisions with fixed live ranges. r=jandem, a=sledru
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---
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js/src/jit/CodeGenerator.cpp | 6 ++++++
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js/src/jit/CodeGenerator.h | 1 +
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js/src/jit/LIR-Common.h | 6 ++++++
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js/src/jit/LOpcodes.h | 1 +
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js/src/jit/Lowering.cpp | 12 ++++++++++++
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5 files changed, 26 insertions(+)
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diff --git a/js/src/jit/CodeGenerator.cpp b/js/src/jit/CodeGenerator.cpp
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index 4f07524..ba14f86 100644
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--- a/js/src/jit/CodeGenerator.cpp
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+++ b/js/src/jit/CodeGenerator.cpp
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@@ -1077,6 +1077,12 @@ CodeGenerator::visitNop(LNop *lir)
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}
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bool
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+CodeGenerator::visitMop(LMop *lir)
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+{
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+ return true;
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+}
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+
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+bool
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CodeGenerator::visitOsiPoint(LOsiPoint *lir)
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{
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// Note: markOsiPoint ensures enough space exists between the last
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diff --git a/js/src/jit/CodeGenerator.h b/js/src/jit/CodeGenerator.h
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index 03677a5..dce095d 100644
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--- a/js/src/jit/CodeGenerator.h
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+++ b/js/src/jit/CodeGenerator.h
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@@ -58,6 +58,7 @@ class CodeGenerator : public CodeGeneratorSpecific
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bool visitLabel(LLabel *lir);
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bool visitNop(LNop *lir);
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+ bool visitMop(LMop *lir);
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bool visitOsiPoint(LOsiPoint *lir);
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bool visitGoto(LGoto *lir);
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bool visitTableSwitch(LTableSwitch *ins);
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diff --git a/js/src/jit/LIR-Common.h b/js/src/jit/LIR-Common.h
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index c90aef9..e7a0e4c 100644
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--- a/js/src/jit/LIR-Common.h
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+++ b/js/src/jit/LIR-Common.h
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@@ -42,6 +42,12 @@ class LNop : public LInstructionHelper<0, 0, 0>
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LIR_HEADER(Nop)
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};
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+class LMop : public LInstructionHelper<0, 0, 0>
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+{
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+ public:
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+ LIR_HEADER(Mop)
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+};
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+
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// An LOsiPoint captures a snapshot after a call and ensures enough space to
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// patch in a call to the invalidation mechanism.
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//
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diff --git a/js/src/jit/LOpcodes.h b/js/src/jit/LOpcodes.h
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index a32d64f..cd7eef8 100644
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--- a/js/src/jit/LOpcodes.h
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+++ b/js/src/jit/LOpcodes.h
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@@ -10,6 +10,7 @@
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#define LIR_COMMON_OPCODE_LIST(_) \
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_(Label) \
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_(Nop) \
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+ _(Mop) \
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_(OsiPoint) \
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_(MoveGroup) \
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_(Integer) \
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diff --git a/js/src/jit/Lowering.cpp b/js/src/jit/Lowering.cpp
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index d5f8227..48b7fa9 100644
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--- a/js/src/jit/Lowering.cpp
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+++ b/js/src/jit/Lowering.cpp
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@@ -3616,12 +3616,24 @@ LIRGenerator::visitInstruction(MInstruction *ins)
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ins->setInWorklistUnchecked();
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#endif
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+ // If we added a Nop for this instruction, we'll also add a Mop, so that
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+ // that live-ranges for fixed register defs, which with LSRA extend through
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+ // the Nop so that they can extend through the OsiPoint don't, with their
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+ // one-extra extension, extend into a position where they use the input
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+ // move group for the following instruction.
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+ bool needsMop = !current->instructions().empty() && current->rbegin()->isNop();
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+
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// If no safepoint was created, there's no need for an OSI point.
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if (LOsiPoint *osiPoint = popOsiPoint()) {
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if (!add(osiPoint))
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return false;
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}
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+ if (needsMop) {
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+ if (!add(new(alloc()) LMop))
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+ return false;
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+ }
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+
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return true;
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}
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--
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2.2.1
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