diff options
| author | Lars Knoll <lars.knoll@qt.io> | 2017-08-13 22:54:11 +0200 |
|---|---|---|
| committer | Erik Verbruggen <erik.verbruggen@qt.io> | 2017-08-18 10:07:08 +0000 |
| commit | 6b7194492624dc1b492593b011b56a165f13dacd (patch) | |
| tree | 735078ddf9328a8d844a88ca98bc5538af5b20f8 /src/qml/compiler | |
| parent | b5d89b3e539399e692fc056e3e03e09038adb6d8 (diff) | |
Add a LoadZero instruction
as 0 is used quite often.
Change-Id: I2c952ef077590f6e6cfe9aad50807f5e0f8686e4
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
Diffstat (limited to 'src/qml/compiler')
| -rw-r--r-- | src/qml/compiler/qv4codegen.cpp | 5 | ||||
| -rw-r--r-- | src/qml/compiler/qv4instr_moth.cpp | 3 | ||||
| -rw-r--r-- | src/qml/compiler/qv4instr_moth_p.h | 5 |
3 files changed, 13 insertions, 0 deletions
diff --git a/src/qml/compiler/qv4codegen.cpp b/src/qml/compiler/qv4codegen.cpp index 9e075fbe6f..9e05c77966 100644 --- a/src/qml/compiler/qv4codegen.cpp +++ b/src/qml/compiler/qv4codegen.cpp @@ -3040,6 +3040,11 @@ void Codegen::Reference::loadInAccumulator() const double d = p.asDouble(); int i = static_cast<int>(d); if (d == i && (d != 0 || !std::signbit(d))) { + if (!i) { + Instruction::LoadZero load; + codegen->bytecodeGenerator->addInstruction(load); + return; + } Instruction::LoadInt load; load.value = Primitive::fromReturnedValue(constant).toInt32(); codegen->bytecodeGenerator->addInstruction(load); diff --git a/src/qml/compiler/qv4instr_moth.cpp b/src/qml/compiler/qv4instr_moth.cpp index 95cbfc07bf..5f5c1d2d50 100644 --- a/src/qml/compiler/qv4instr_moth.cpp +++ b/src/qml/compiler/qv4instr_moth.cpp @@ -136,6 +136,9 @@ void dumpBytecode(const char *code, int len, int nLocals, int nFormals) MOTH_BEGIN_INSTR(LoadNull) MOTH_END_INSTR(LoadNull) + MOTH_BEGIN_INSTR(LoadZero) + MOTH_END_INSTR(LoadZero) + MOTH_BEGIN_INSTR(LoadTrue) MOTH_END_INSTR(LoadTrue) diff --git a/src/qml/compiler/qv4instr_moth_p.h b/src/qml/compiler/qv4instr_moth_p.h index d972f64ba4..2f181f806c 100644 --- a/src/qml/compiler/qv4instr_moth_p.h +++ b/src/qml/compiler/qv4instr_moth_p.h @@ -72,6 +72,7 @@ QT_BEGIN_NAMESPACE F(Ret, ret) \ MOTH_DEBUG_INSTR(F) \ F(LoadConst, loadConst) \ + F(LoadZero, loadZero) \ F(LoadTrue, loadTrue) \ F(LoadFalse, loadFalse) \ F(LoadNull, loadNull) \ @@ -268,6 +269,9 @@ union Instr MOTH_INSTR_HEADER int index; }; + struct instr_loadZero { + MOTH_INSTR_HEADER + }; struct instr_loadTrue { MOTH_INSTR_HEADER }; @@ -716,6 +720,7 @@ union Instr instr_line line; instr_debug debug; instr_loadConst loadConst; + instr_loadZero loadZero; instr_loadTrue loadTrue; instr_loadFalse loadFalse; instr_loadNull loadNull; |