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Merge pull request #596 from degasus/fix_perf_register

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backend/x64: Fix PerfMapRegister usages.
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merry 2021-04-05 21:43:10 +01:00 committed by GitHub
commit 71491c0a4a
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 19 additions and 4 deletions
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5
src/backend/x64/a32_emit_x64.cpp
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@ -115,6 +115,9 @@ A32EmitX64::BlockDescriptor A32EmitX64::Emit(IR::Block& block) {
// Start emitting.
code.align();
const u8* const entrypoint = code.getCurr();
code.SwitchToFarCode();
const u8* const entrypoint_far = code.getCurr();
code.SwitchToNearCode();
EmitCondPrelude(ctx);
@ -160,7 +163,7 @@ A32EmitX64::BlockDescriptor A32EmitX64::Emit(IR::Block& block) {
const auto range = boost::icl::discrete_interval<u32>::closed(descriptor.PC(), end_location.PC() - 1);
block_ranges.AddRange(range, descriptor);
return RegisterBlock(descriptor, entrypoint, size);
return RegisterBlock(descriptor, entrypoint, entrypoint_far, size);
}
void A32EmitX64::ClearCache() {

6
src/backend/x64/a64_emit_x64.cpp
View file

@ -81,6 +81,9 @@ A64EmitX64::BlockDescriptor A64EmitX64::Emit(IR::Block& block) {
// Start emitting.
code.align();
const u8* const entrypoint = code.getCurr();
code.SwitchToFarCode();
const u8* const entrypoint_far = code.getCurr();
code.SwitchToNearCode();
ASSERT(block.GetCondition() == IR::Cond::AL);
@ -126,7 +129,7 @@ A64EmitX64::BlockDescriptor A64EmitX64::Emit(IR::Block& block) {
const auto range = boost::icl::discrete_interval<u64>::closed(descriptor.PC(), end_location.PC() - 1);
block_ranges.AddRange(range, descriptor);
return RegisterBlock(descriptor, entrypoint, size);
return RegisterBlock(descriptor, entrypoint, entrypoint_far, size);
}
void A64EmitX64::ClearCache() {
@ -358,6 +361,7 @@ void A64EmitX64::GenTerminalHandlers() {
code.and_(code.ABI_PARAM1.cvt32(), fast_dispatch_table_mask);
code.lea(code.ABI_RETURN, code.ptr[code.ABI_PARAM1 + code.ABI_PARAM2]);
code.ret();
PerfMapRegister(fast_dispatch_table_lookup, code.getCurr(), "a64_fast_dispatch_table_lookup");
}
}

5
src/backend/x64/emit_x64.cpp
View file

@ -264,8 +264,11 @@ Xbyak::Label EmitX64::EmitCond(IR::Cond cond) {
return pass;
}
EmitX64::BlockDescriptor EmitX64::RegisterBlock(const IR::LocationDescriptor& descriptor, CodePtr entrypoint, size_t size) {
EmitX64::BlockDescriptor EmitX64::RegisterBlock(const IR::LocationDescriptor& descriptor, CodePtr entrypoint, CodePtr entrypoint_far, size_t size) {
PerfMapRegister(entrypoint, code.getCurr(), LocationDescriptorToFriendlyName(descriptor));
code.SwitchToFarCode();
PerfMapRegister(entrypoint_far, code.getCurr(), LocationDescriptorToFriendlyName(descriptor) + "_far");
code.SwitchToNearCode();
Patch(descriptor, entrypoint);
BlockDescriptor block_desc{entrypoint, size};

2
src/backend/x64/emit_x64.h
View file

@ -94,7 +94,7 @@ protected:
virtual std::string LocationDescriptorToFriendlyName(const IR::LocationDescriptor&) const = 0;
void EmitAddCycles(size_t cycles);
Xbyak::Label EmitCond(IR::Cond cond);
BlockDescriptor RegisterBlock(const IR::LocationDescriptor& location_descriptor, CodePtr entrypoint, size_t size);
BlockDescriptor RegisterBlock(const IR::LocationDescriptor& location_descriptor, CodePtr entrypoint, CodePtr entrypoint_far, size_t size);
void PushRSBHelper(Xbyak::Reg64 loc_desc_reg, Xbyak::Reg64 index_reg, IR::LocationDescriptor target);
// Terminal instruction emitters

5
src/backend/x64/perf_map.cpp
View file

@ -47,6 +47,11 @@ void OpenFile() {
namespace detail {
void PerfMapRegister(const void* start, const void* end, std::string_view friendly_name) {
if (start == end) {
// Nothing to register
return;
}
std::lock_guard guard{mutex};
if (!file) {