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| author | dgp <dgp@users.sourceforge.net> | 2013-09-12 17:42:36 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2013-09-12 17:42:36 (GMT) |
| commit | 3e3fe2606ae5233ae213b95fd91d7d05d2987659 (patch) | |
| tree | 84a90bcb94d36ff3c3a877deacfa1619f17c3e41 /generic/tclCompExpr.c | |
| parent | 23bb5a2c20bd07e4b66ad4293fb927128e9e975b (diff) | |
| download | tcl-3e3fe2606ae5233ae213b95fd91d7d05d2987659.zip tcl-3e3fe2606ae5233ae213b95fd91d7d05d2987659.tar.gz tcl-3e3fe2606ae5233ae213b95fd91d7d05d2987659.tar.bz2 | |
Stop allocating JumpFixups for jumps that can never need any fixing up.
Diffstat (limited to 'generic/tclCompExpr.c')
| -rw-r--r-- | generic/tclCompExpr.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/generic/tclCompExpr.c b/generic/tclCompExpr.c index 4afb069..7684c70 100644 --- a/generic/tclCompExpr.c +++ b/generic/tclCompExpr.c @@ -2269,12 +2269,6 @@ CompileExprTree( newJump = TclStackAlloc(interp, sizeof(JumpList)); newJump->next = jumpPtr; jumpPtr = newJump; - newJump = TclStackAlloc(interp, sizeof(JumpList)); - newJump->next = jumpPtr; - jumpPtr = newJump; - newJump = TclStackAlloc(interp, sizeof(JumpList)); - newJump->next = jumpPtr; - jumpPtr = newJump; break; } } else if (nodePtr->mark == MARK_RIGHT) { @@ -2328,6 +2322,8 @@ CompileExprTree( break; } } else { + int pc1, pc2; + switch (nodePtr->lexeme) { case START: case QUESTION: @@ -2377,7 +2373,9 @@ CompileExprTree( jumpPtr->next->jump.codeOffset += 3; } TclFixupForwardJump(envPtr, &jumpPtr->jump, - jumpPtr->next->jump.codeOffset + 2 -jumpPtr->jump.codeOffset, 127); + jumpPtr->next->jump.codeOffset + 2 + - jumpPtr->jump.codeOffset, 127); + freePtr = jumpPtr; jumpPtr = jumpPtr->next; TclStackFree(interp, freePtr); @@ -2388,32 +2386,27 @@ CompileExprTree( case AND: case OR: CLANG_ASSERT(jumpPtr); - TclEmitForwardJump(envPtr, (nodePtr->lexeme == AND) - ? TCL_FALSE_JUMP : TCL_TRUE_JUMP, - &jumpPtr->next->jump); + pc1 = CurrentOffset(envPtr); + TclEmitInstInt1((nodePtr->lexeme == AND) ? INST_JUMP_FALSE1 + : INST_JUMP_TRUE1, 0, envPtr); TclEmitPush(TclRegisterNewLiteral(envPtr, (nodePtr->lexeme == AND) ? "1" : "0", 1), envPtr); - TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, - &jumpPtr->next->next->jump); + pc2 = CurrentOffset(envPtr); + TclEmitInstInt1(INST_JUMP1, 0, envPtr); TclAdjustStackDepth(-1, envPtr); - TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->jump, 127); + TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc1, + envPtr->codeStart + pc1 + 1); if (TclFixupForwardJumpToHere(envPtr, &jumpPtr->jump, 127)) { - jumpPtr->next->next->jump.codeOffset += 3; + pc2 += 3; } TclEmitPush(TclRegisterNewLiteral(envPtr, (nodePtr->lexeme == AND) ? "0" : "1", 1), envPtr); - TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->next->jump, - 127); + TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc2, + envPtr->codeStart + pc2 + 1); convert = 0; freePtr = jumpPtr; jumpPtr = jumpPtr->next; TclStackFree(interp, freePtr); - freePtr = jumpPtr; - jumpPtr = jumpPtr->next; - TclStackFree(interp, freePtr); - freePtr = jumpPtr; - jumpPtr = jumpPtr->next; - TclStackFree(interp, freePtr); break; default: TclEmitOpcode(instruction[nodePtr->lexeme], envPtr); |