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Calculate register dependency data.

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This commit is contained in:
Bartosz Taudul 2020-05-01 22:39:37 +02:00
parent 93f255e95b
commit 0fdb5e6592
2 changed files with 196 additions and 2 deletions
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192
server/TracySourceView.cpp
View File

@ -1858,7 +1858,7 @@ void SourceView::RenderLine( const Line& line, int lineNum, uint32_t ipcnt, uint
draw->AddLine( wpos + ImVec2( 0, ty+2 ), wpos + ImVec2( w, ty+2 ), 0x08FFFFFF );
}
void SourceView::RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t iptotal, uint32_t ipmax, const Worker& worker, uint64_t& jumpOut, int maxAddrLen, const View& view )
void SourceView::RenderAsmLine( AsmLine& line, uint32_t ipcnt, uint32_t iptotal, uint32_t ipmax, const Worker& worker, uint64_t& jumpOut, int maxAddrLen, const View& view )
{
const auto ty = ImGui::GetFontSize();
auto draw = ImGui::GetWindowDrawList();
@ -2274,10 +2274,40 @@ void SourceView::RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t ip
if( ImGui::IsMouseClicked( 0 ) )
{
m_asmSelected = asmIdx;
ResetAsm();
int idx = 0;
for(;;)
{
if( line.readX86[idx] == RegsX86::invalid ) break;
line.regData[idx] = ReadBit | (int)line.readX86[idx];
FollowWrite( asmIdx, line.readX86[idx++], 128 );
}
idx = 0;
for(;;)
{
if( line.writeX86[idx] == RegsX86::invalid ) break;
int ridx = 0;
for(;;)
{
if( line.regData[ridx] == 0 )
{
line.regData[ridx] = WriteBit | (int)line.writeX86[idx];
break;
}
else if( ( line.regData[ridx] & RegMask ) == (int)line.writeX86[idx] )
{
line.regData[ridx] |= WriteBit;
break;
}
ridx++;
}
FollowRead( asmIdx, line.writeX86[idx++], 128 );
}
}
else if( ImGui::IsMouseClicked( 1 ) )
{
m_asmSelected = -1;
ResetAsm();
}
}
@ -2776,4 +2806,164 @@ void SourceView::ResetAsm()
for( auto& line : m_asm ) memset( line.regData, 0, sizeof( line.regData ) );
}
void SourceView::FollowRead( int line, RegsX86 reg, int limit )
{
if( limit == 0 ) return;
const auto& data = m_asm[line];
if( m_jumpOut.find( data.addr ) != m_jumpOut.end() && !data.jumpConditional ) return;
if( data.jumpAddr != 0 )
{
auto fit = std::lower_bound( m_asm.begin(), m_asm.end(), data.jumpAddr, []( const auto& l, const auto& r ) { return l.addr < r; } );
if( fit != m_asm.end() && fit->addr == data.jumpAddr )
{
CheckRead( fit - m_asm.begin(), reg, limit );
}
if( !data.jumpConditional ) return;
}
if( line+1 < m_asm.size() )
{
CheckRead( line+1, reg, limit );
}
}
void SourceView::FollowWrite( int line, RegsX86 reg, int limit )
{
if( limit == 0 ) return;
const auto& data = m_asm[line];
if( m_jumpOut.find( data.addr ) != m_jumpOut.end() && !data.jumpConditional ) return;
auto it = m_jumpTable.find( data.addr );
if( it != m_jumpTable.end() )
{
for( auto& v : it->second.source )
{
auto fit = std::lower_bound( m_asm.begin(), m_asm.end(), v, []( const auto& l, const auto& r ) { return l.addr < r; } );
assert( fit != m_asm.end() && fit->addr == v );
CheckWrite( fit - m_asm.begin(), reg, limit );
}
}
if( line-1 >= 0 )
{
CheckWrite( line-1, reg, limit );
}
}
void SourceView::CheckRead( int line, RegsX86 reg, int limit )
{
auto& data = m_asm[line];
int idx = 0;
for(;;)
{
if( data.readX86[idx] == RegsX86::invalid )
{
idx = 0;
for(;;)
{
if( data.writeX86[idx] == RegsX86::invalid )
{
FollowRead( line, reg, limit - 1 );
return;
}
if( data.writeX86[idx] == reg )
{
idx = 0;
for(;;)
{
if( data.regData[idx] == 0 )
{
data.regData[idx] = ReuseBit | (int)reg;
return;
}
if( ( data.regData[idx] & RegMask ) == (int)reg )
{
data.regData[idx] |= ReuseBit;
return;
}
idx++;
}
}
idx++;
}
}
if( data.readX86[idx] == reg )
{
idx = 0;
for(;;)
{
if( data.regData[idx] == 0 )
{
data.regData[idx] = ReadBit | (int)reg;
return;
}
if( ( data.regData[idx] & RegMask ) == (int)reg )
{
data.regData[idx] |= ReadBit;
return;
}
idx++;
}
}
idx++;
}
}
void SourceView::CheckWrite( int line, RegsX86 reg, int limit )
{
auto& data = m_asm[line];
int idx = 0;
for(;;)
{
if( data.writeX86[idx] == RegsX86::invalid )
{
idx = 0;
for(;;)
{
if( data.readX86[idx] == RegsX86::invalid )
{
FollowWrite( line, reg, limit - 1 );
return;
}
if( data.readX86[idx] == reg )
{
idx = 0;
for(;;)
{
if( data.regData[idx] == 0 )
{
data.regData[idx] = ReuseBit | (int)reg;
return;
}
if( ( data.regData[idx] & RegMask ) == (int)reg )
{
data.regData[idx] |= ReuseBit;
return;
}
idx++;
}
}
idx++;
}
}
if( data.writeX86[idx] == reg )
{
idx = 0;
for(;;)
{
if( data.regData[idx] == 0 )
{
data.regData[idx] = WriteBit | (int)reg;
return;
}
else if( ( data.regData[idx] & RegMask ) == (int)reg )
{
data.regData[idx] |= WriteBit;
return;
}
idx++;
}
}
idx++;
}
}
}

6
server/TracySourceView.hpp
View File

@ -145,7 +145,7 @@ private:
uint64_t RenderSymbolAsmView( uint32_t iptotal, unordered_flat_map<uint64_t, uint32_t> ipcount, uint32_t ipmax, const Worker& worker, const View& view );
void RenderLine( const Line& line, int lineNum, uint32_t ipcnt, uint32_t iptotal, uint32_t ipmax, const Worker* worker );
void RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t iptotal, uint32_t ipmax, const Worker& worker, uint64_t& jumpOut, int maxAddrLen, const View& view );
void RenderAsmLine( AsmLine& line, uint32_t ipcnt, uint32_t iptotal, uint32_t ipmax, const Worker& worker, uint64_t& jumpOut, int maxAddrLen, const View& view );
void SelectLine( uint32_t line, const Worker* worker, bool changeAsmLine = true, uint64_t targetAddr = 0 );
void SelectAsmLines( uint32_t file, uint32_t line, const Worker& worker, bool changeAsmLine = true, uint64_t targetAddr = 0 );
@ -159,6 +159,10 @@ private:
std::vector<Token> Tokenize( const char* begin, const char* end );
void ResetAsm();
void FollowRead( int line, RegsX86 reg, int limit );
void FollowWrite( int line, RegsX86 reg, int limit );
void CheckRead( int line, RegsX86 reg, int limit );
void CheckWrite( int line, RegsX86 reg, int limit );
struct TokenizerState
{