diff options
-rw-r--r-- | generic/tclExecute.c | 188 | ||||
-rw-r--r-- | unix/tclUnixPort.h | 4 | ||||
-rw-r--r-- | unix/tclUnixSock.c | 6 |
3 files changed, 91 insertions, 107 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c index 303bafd..628dfe7 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -2084,7 +2084,8 @@ TEBCresume( Tcl_Obj **tosPtr; /* Cached pointer to top of evaluation * stack. */ const unsigned char *pc; /* The current program counter. */ - + unsigned char inst; /* The currently running instruction */ + /* * Transfer variables - needed only between opcodes, but not while * executing an instruction. @@ -2250,23 +2251,6 @@ TEBCresume( } cleanup0: -#ifdef TCL_COMPILE_DEBUG - /* - * Skip the stack depth check if an expansion is in progress. - */ - - CHECK_STACK(); - if (traceInstructions) { - fprintf(stdout, "%2d: %2d ", iPtr->numLevels, (int) CURR_DEPTH); - TclPrintInstruction(codePtr, pc); - fflush(stdout); - } -#endif /* TCL_COMPILE_DEBUG */ - -#ifdef TCL_COMPILE_STATS - iPtr->stats.instructionCount[*pc]++; -#endif - /* * Check for asynchronous handlers [Bug 746722]; we do the check every * ASYNC_CHECK_COUNT_MASK instruction, of the form (2**n-1). @@ -2298,8 +2282,6 @@ TEBCresume( CACHE_STACK_INFO(); } - TCL_DTRACE_INST_NEXT(); - /* * These two instructions account for 26% of all instructions (according * to measurements on tclbench by Ben Vitale @@ -2309,13 +2291,53 @@ TEBCresume( * reduces total obj size. */ - if (*pc == INST_LOAD_SCALAR1) { - goto instLoadScalar1; - } else if (*pc == INST_PUSH1) { - goto instPush1Peephole; + inst = *pc; + + peepholeStart: +#ifdef TCL_COMPILE_STATS + iPtr->stats.instructionCount[*pc]++; +#endif + +#ifdef TCL_COMPILE_DEBUG + /* + * Skip the stack depth check if an expansion is in progress. + */ + + CHECK_STACK(); + if (traceInstructions) { + fprintf(stdout, "%2d: %2d ", iPtr->numLevels, (int) CURR_DEPTH); + TclPrintInstruction(codePtr, pc); + fflush(stdout); } +#endif /* TCL_COMPILE_DEBUG */ - switch (*pc) { + TCL_DTRACE_INST_NEXT(); + + if (inst == INST_LOAD_SCALAR1) { + goto instLoadScalar1; + } else if (inst == INST_PUSH1) { + PUSH_OBJECT(codePtr->objArrayPtr[TclGetUInt1AtPtr(pc+1)]); + TRACE_WITH_OBJ(("%u => ", TclGetInt1AtPtr(pc+1)), OBJ_AT_TOS); + inst = *(pc += 2); + goto peepholeStart; + } else if (inst == INST_START_CMD) { + /* + * Peephole: do not run INST_START_CMD, just skip it + */ + + iPtr->cmdCount += TclGetUInt4AtPtr(pc+5); + if (checkInterp) { + checkInterp = 0; + if ((codePtr->compileEpoch != iPtr->compileEpoch) + || (codePtr->nsEpoch != iPtr->varFramePtr->nsPtr->resolverEpoch)) { + goto instStartCmdFailed; + } + } + inst = *(pc += 9); + goto peepholeStart; + } + + switch (inst) { case INST_SYNTAX: case INST_RETURN_IMM: { int code = TclGetInt4AtPtr(pc+1); @@ -2465,23 +2487,6 @@ TEBCresume( (void) POP_OBJECT(); goto abnormalReturn; - case INST_PUSH1: - instPush1Peephole: - PUSH_OBJECT(codePtr->objArrayPtr[TclGetUInt1AtPtr(pc+1)]); - TRACE_WITH_OBJ(("%u => ", TclGetInt1AtPtr(pc+1)), OBJ_AT_TOS); - pc += 2; -#if !TCL_COMPILE_DEBUG - /* - * Runtime peephole optimisation: check if we are pushing again. - */ - - if (*pc == INST_PUSH1) { - TCL_DTRACE_INST_NEXT(); - goto instPush1Peephole; - } -#endif - NEXT_INST_F(0, 0, 0); - case INST_PUSH4: objResultPtr = codePtr->objArrayPtr[TclGetUInt4AtPtr(pc+1)]; TRACE_WITH_OBJ(("%u => ", TclGetUInt4AtPtr(pc+1)), objResultPtr); @@ -2491,68 +2496,10 @@ TEBCresume( TRACE_WITH_OBJ(("=> discarding "), OBJ_AT_TOS); objPtr = POP_OBJECT(); TclDecrRefCount(objPtr); - - /* - * Runtime peephole optimisation: an INST_POP is scheduled at the end - * of most commands. If the next instruction is an INST_START_CMD, - * fall through to it. - */ - - pc++; -#if !TCL_COMPILE_DEBUG - if (*pc == INST_START_CMD) { - TCL_DTRACE_INST_NEXT(); - goto instStartCmdPeephole; - } -#endif - NEXT_INST_F(0, 0, 0); - - case INST_START_CMD: -#if !TCL_COMPILE_DEBUG - instStartCmdPeephole: -#endif - /* - * Remark that if the interpreter is marked for deletion its - * compileEpoch is modified, so that the epoch check also verifies - * that the interp is not deleted. If no outside call has been made - * since the last check, it is safe to omit the check. - */ - - iPtr->cmdCount += TclGetUInt4AtPtr(pc+5); - if (!checkInterp) { - goto instStartCmdOK; - } else if (((codePtr->compileEpoch == iPtr->compileEpoch) - && (codePtr->nsEpoch == iPtr->varFramePtr->nsPtr->resolverEpoch)) - || (codePtr->flags & TCL_BYTECODE_PRECOMPILED)) { - checkInterp = 0; - instStartCmdOK: - NEXT_INST_F(9, 0, 0); - } else { - const char *bytes; - - length = 0; - - /* - * We used to switch to direct eval; for NRE-awareness we now - * compile and eval the command so that this evaluation does not - * add a new TEBC instance. [Bug 2910748] - */ - - if (TclInterpReady(interp) == TCL_ERROR) { - goto gotError; - } - - codePtr->flags |= TCL_BYTECODE_RECOMPILE; - bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL); - opnd = TclGetUInt4AtPtr(pc+1); - pc += (opnd-1); - PUSH_OBJECT(Tcl_NewStringObj(bytes, length)); - goto instEvalStk; - } + NEXT_INST_F(1, 0, 0); case INST_NOP: - pc += 1; - goto cleanup0; + NEXT_INST_F(1, 0, 0); case INST_DUP: objResultPtr = OBJ_AT_TOS; @@ -7102,6 +7049,43 @@ TEBCresume( TclStackFree(interp, TD); /* free my stack */ return result; + + /* + * INST_START_CMD failure case removed where it doesn't bother that much + * + * Remark that if the interpreter is marked for deletion its + * compileEpoch is modified, so that the epoch check also verifies + * that the interp is not deleted. If no outside call has been made + * since the last check, it is safe to omit the check. + + * case INST_START_CMD: + */ + + instStartCmdFailed: + { + const char *bytes; + + checkInterp = 1; + length = 0; + + /* + * We used to switch to direct eval; for NRE-awareness we now + * compile and eval the command so that this evaluation does not + * add a new TEBC instance. [Bug 2910748] + */ + + if (TclInterpReady(interp) == TCL_ERROR) { + goto gotError; + } + + codePtr->flags |= TCL_BYTECODE_RECOMPILE; + bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL); + opnd = TclGetUInt4AtPtr(pc+1); + pc += (opnd-1); + PUSH_OBJECT(Tcl_NewStringObj(bytes, length)); + goto instEvalStk; + NEXT_INST_F(9, 0, 0); + } } #undef codePtr diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h index 6dc73ed..88cc87e 100644 --- a/unix/tclUnixPort.h +++ b/unix/tclUnixPort.h @@ -744,8 +744,8 @@ MODULE_SCOPE struct group * TclpGetGrGid(gid_t gid); MODULE_SCOPE struct hostent * TclpGetHostByName(const char *name); MODULE_SCOPE struct hostent * TclpGetHostByAddr(const char *addr, int length, int type); -MODULE_SCOPE Tcl_Channel TclpMakeTcpClientChannelMode( - ClientData tcpSocket, int mode); +MODULE_SCOPE void *TclpMakeTcpClientChannelMode( + void *tcpSocket, int mode); #endif /* _TCLUNIXPORT */ diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c index 31daa62..528f009 100644 --- a/unix/tclUnixSock.c +++ b/unix/tclUnixSock.c @@ -1202,7 +1202,7 @@ Tcl_Channel Tcl_MakeTcpClientChannel( ClientData sock) /* The socket to wrap up into a channel. */ { - return TclpMakeTcpClientChannelMode(sock, (TCL_READABLE | TCL_WRITABLE)); + return (Tcl_Channel) TclpMakeTcpClientChannelMode(sock, (TCL_READABLE | TCL_WRITABLE)); } /* @@ -1222,9 +1222,9 @@ Tcl_MakeTcpClientChannel( *---------------------------------------------------------------------- */ -Tcl_Channel +void * TclpMakeTcpClientChannelMode( - ClientData sock, /* The socket to wrap up into a channel. */ + void *sock, /* The socket to wrap up into a channel. */ int mode) /* ORed combination of TCL_READABLE and * TCL_WRITABLE to indicate file mode. */ { |