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Unified Diff: src/IceAssemblerX86BaseImpl.h

Issue 1559243002: Suzero. X8664. NaCl Sandboxing. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fixes filetype=asm; addresses comments. Created 4 years, 11 months ago
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Index: src/IceAssemblerX86BaseImpl.h
diff --git a/src/IceAssemblerX86BaseImpl.h b/src/IceAssemblerX86BaseImpl.h
index 912130a38a73346e3e7f57b8e8ef40b9e2d583b0..f007194d2e89ea86fa0728e5458cb704929e610d 100644
--- a/src/IceAssemblerX86BaseImpl.h
+++ b/src/IceAssemblerX86BaseImpl.h
@@ -152,6 +152,25 @@ void AssemblerX86Base<TraitsType>::pushl(GPRRegister reg) {
}
template <typename TraitsType>
+void AssemblerX86Base<TraitsType>::pushl(const Immediate &Imm) {
+ AssemblerBuffer::EnsureCapacity ensured(&Buffer);
+ emitUint8(0x68);
+ emitInt32(Imm.value());
+}
+
+template <typename TraitsType>
+void AssemblerX86Base<TraitsType>::pushl(const ConstantRelocatable *Label) {
+ AssemblerBuffer::EnsureCapacity ensured(&Buffer);
+ emitUint8(0x68);
+ emitFixup(this->createFixup(Traits::FK_Abs, Label));
+ // In x86-32, the emitted value is an addend to the relocation. Therefore, we
+ // must emit a 0 (because we're pushing an absolute relocation.)
+ // In x86-64, the emitted value does not matter (the addend lives in the
+ // relocation record as an extra field.)
+ emitInt32(0);
+}
+
+template <typename TraitsType>
void AssemblerX86Base<TraitsType>::popl(GPRRegister reg) {
AssemblerBuffer::EnsureCapacity ensured(&Buffer);
// Any type that would not force a REX prefix to be emitted can be provided
@@ -382,7 +401,8 @@ template <typename TraitsType>
void AssemblerX86Base<TraitsType>::lea(Type Ty, GPRRegister dst,
const Address &src) {
AssemblerBuffer::EnsureCapacity ensured(&Buffer);
- assert(Ty == IceType_i16 || Ty == IceType_i32);
+ assert(Ty == IceType_i16 || Ty == IceType_i32 ||
+ (Traits::Is64Bit && Ty == IceType_i64));
if (Ty == IceType_i16)
emitOperandSizeOverride();
emitAddrSizeOverridePrefix();
@@ -3140,7 +3160,6 @@ void AssemblerX86Base<TraitsType>::jmp(Label *label, bool near) {
template <typename TraitsType>
void AssemblerX86Base<TraitsType>::jmp(const ConstantRelocatable *label) {
- llvm::report_fatal_error("Untested - please verify and then reenable.");
AssemblerBuffer::EnsureCapacity ensured(&Buffer);
emitUint8(0xE9);
emitFixup(this->createFixup(Traits::FK_PcRel, label));
@@ -3307,22 +3326,23 @@ void AssemblerX86Base<TraitsType>::align(intptr_t alignment, intptr_t offset) {
}
template <typename TraitsType>
-void AssemblerX86Base<TraitsType>::bind(Label *label) {
- intptr_t bound = Buffer.size();
- assert(!label->isBound()); // Labels can only be bound once.
- while (label->isLinked()) {
- intptr_t position = label->getLinkPosition();
- intptr_t next = Buffer.load<int32_t>(position);
- Buffer.store<int32_t>(position, bound - (position + 4));
- label->Position = next;
+void AssemblerX86Base<TraitsType>::bind(Label *L) {
+ const intptr_t Bound = Buffer.size();
+ assert(!L->isBound()); // Labels can only be bound once.
+ while (L->isLinked()) {
+ const intptr_t Position = L->getLinkPosition();
+ const intptr_t Next = Buffer.load<int32_t>(Position);
+ const intptr_t Offset = Bound - (Position + 4);
+ Buffer.store<int32_t>(Position, Offset);
+ L->Position = Next;
}
- while (label->hasNear()) {
- intptr_t position = label->getNearPosition();
- intptr_t offset = bound - (position + 1);
- assert(Utils::IsInt(8, offset));
- Buffer.store<int8_t>(position, offset);
+ while (L->hasNear()) {
+ intptr_t Position = L->getNearPosition();
+ const intptr_t Offset = Bound - (Position + 1);
+ assert(Utils::IsInt(8, Offset));
+ Buffer.store<int8_t>(Position, Offset);
}
- label->bindTo(bound);
+ L->bindTo(Bound);
}
template <typename TraitsType>
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