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-rw-r--r--generic/tclExecute.c128
1 files changed, 58 insertions, 70 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index d316293..86ea4b5 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclExecute.c,v 1.172 2005/03/14 23:14:08 msofer Exp $
+ * RCS: @(#) $Id: tclExecute.c,v 1.173 2005/03/31 19:10:53 msofer Exp $
*/
#include "tclInt.h"
@@ -2463,92 +2463,80 @@ TclExecuteByteCode(interp, codePtr)
}
{
- int trueJmp, falseJmp;
-
-
+ int jmpOffset[2];
+ int b;
+ Tcl_Obj *valuePtr;
+
case INST_JUMP_FALSE4:
- trueJmp = 5;
- falseJmp = TclGetInt4AtPtr(pc+1);
- goto doJumpTrue;
+ jmpOffset[0] = TclGetInt4AtPtr(pc+1); /* FALSE offset */
+ jmpOffset[1] = 5; /* TRUE offset*/
+ goto doCondJump;
case INST_JUMP_TRUE4:
- trueJmp = TclGetInt4AtPtr(pc+1);
- falseJmp = 5;
- goto doJumpTrue;
+ jmpOffset[0] = 5;
+ jmpOffset[1] = TclGetInt4AtPtr(pc+1);
+ goto doCondJump;
case INST_JUMP_FALSE1:
- trueJmp = 2;
- falseJmp = TclGetInt1AtPtr(pc+1);
- goto doJumpTrue;
+ jmpOffset[0] = TclGetInt1AtPtr(pc+1);
+ jmpOffset[1] = 2;
+ goto doCondJump;
case INST_JUMP_TRUE1:
- trueJmp = TclGetInt1AtPtr(pc+1);
- falseJmp = 2;
+ jmpOffset[0] = 2;
+ jmpOffset[1] = TclGetInt1AtPtr(pc+1);
- doJumpTrue:
- {
- int b;
- Tcl_Obj *valuePtr;
+ doCondJump:
+ valuePtr = *tosPtr;
+
+ if ((valuePtr->typePtr == &tclIntType)
+ || (valuePtr->typePtr == &tclBooleanType)) {
+ b = (valuePtr->internalRep.longValue != 0);
+ } else if (valuePtr->typePtr == &tclDoubleType) {
+ b = (valuePtr->internalRep.doubleValue != 0.0);
+ } else if (valuePtr->typePtr == &tclWideIntType) {
+ Tcl_WideInt w;
- valuePtr = *tosPtr;
-
+ TclGetWide(w,valuePtr);
+ b = (w != W0);
+ } else {
/*
- * The following will be partially resolved at compile
- * time and optimised away.
- */
- if (((sizeof(long) == sizeof(int)) &&
- (valuePtr->typePtr == &tclIntType))
- || (valuePtr->typePtr == &tclBooleanType)) {
- b = (int) valuePtr->internalRep.longValue;
- } else if ((sizeof(long) != sizeof(int)) &&
- (valuePtr->typePtr == &tclIntType)) {
- b = (valuePtr->internalRep.longValue != 0);
- } else if (valuePtr->typePtr == &tclDoubleType) {
- b = (valuePtr->internalRep.doubleValue != 0.0);
- } else if (valuePtr->typePtr == &tclWideIntType) {
- Tcl_WideInt w;
-
- TclGetWide(w,valuePtr);
- b = (w != W0);
- } else {
- /*
- * Taking b's address impedes it being a register
- * variable (in gcc at least), so we avoid doing it.
-
- */
- int b1;
- result = Tcl_GetBooleanFromObj(interp, valuePtr, &b1);
- if (result != TCL_OK) {
- if ((*pc == INST_JUMP_FALSE1) || (*pc == INST_JUMP_FALSE4)) {
- trueJmp = falseJmp;
- }
- TRACE_WITH_OBJ(("%d => ERROR: ", trueJmp), Tcl_GetObjResult(interp));
- goto checkForCatch;
+ * Taking b's address impedes it being a register
+ * variable (in gcc at least), so we avoid doing it.
+
+ */
+ int b1;
+ result = Tcl_GetBooleanFromObj(interp, valuePtr, &b1);
+ if (result != TCL_OK) {
+ if ((*pc == INST_JUMP_FALSE1) || (*pc == INST_JUMP_FALSE4)) {
+ jmpOffset[1] = jmpOffset[0];
}
- b = b1;
+ TRACE_WITH_OBJ(("%d => ERROR: ", jmpOffset[1]), Tcl_GetObjResult(interp));
+ goto checkForCatch;
}
+ b = b1;
+ }
#ifndef TCL_COMPILE_DEBUG
- NEXT_INST_F((b? trueJmp : falseJmp), 1, 0);
+ NEXT_INST_F(jmpOffset[b], 1, 0);
#else
- if (b) {
- if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
- TRACE(("%d => %.20s true, new pc %u\n", trueJmp, O2S(valuePtr),
- (unsigned int)(pc+trueJmp - codePtr->codeStart)));
- } else {
- TRACE(("%d => %.20s true\n", falseJmp, O2S(valuePtr)));
- }
- NEXT_INST_F(trueJmp, 1, 0);
+ if (b) {
+ if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
+ TRACE(("%d => %.20s true, new pc %u\n", jmpOffset[1], O2S(valuePtr),
+ (unsigned int)(pc+jmpOffset[1] - codePtr->codeStart)));
} else {
- if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
- TRACE(("%d => %.20s false\n", falseJmp, O2S(valuePtr)));
- } else {
- TRACE(("%d => %.20s false, new pc %u\n", falseJmp, O2S(valuePtr),
- (unsigned int)(pc + falseJmp - codePtr->codeStart)));
- }
- NEXT_INST_F(falseJmp, 1, 0);
+ TRACE(("%d => %.20s true\n", jmpOffset[0], O2S(valuePtr)));
}
-#endif
+ NEXT_INST_F(jmpOffset[1], 1, 0);
+ } else {
+ if ((*pc == INST_JUMP_TRUE1) || (*pc == INST_JUMP_TRUE4)) {
+ TRACE(("%d => %.20s false\n", jmpOffset[0], O2S(valuePtr)));
+ } else {
+ TRACE(("%d => %.20s false, new pc %u\n", jmpOffset[0], O2S(valuePtr),
+ (unsigned int)(pc + jmpOffset[1] - codePtr->codeStart)));
+ }
+ NEXT_INST_F(jmpOffset[0], 1, 0);
}
+#endif
}
/*