384 lines
9.7 KiB
Plaintext
384 lines
9.7 KiB
Plaintext
From lcc 4.1 to 4.2:
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Below is a summary of the source-control log entries for those files
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changed for lcc 4.2.
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$Id$
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src/alloc.c:
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Fixed subtle alignment bug on p. 28.
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src/dag.c:
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Renamed kill to killnodes to avoid possible clash with kill in <signal.ch>.
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Made address interface function optional.
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Ensured that generated locals, even if not temps, are
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added to the code list.
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Avoided calls to undag when errcnt>0.
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Changed listnodes so that array types decay to pointers; bug
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tickled by -n option.
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src/decl.c:
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Moved call to retcode that injects a return at the end of a function
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into compound so that temps created by retcode will be
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scoped properly.
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Fixed bug in which functions that return const struct S {...} issued
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an incorrect diagnostic.
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Ensure addressed is set for local arrays.
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src/enode.c:
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Corrected type conversions in addtree for ADD+P nodes;
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stripped qualifiers from pointer types in eqtree and cmptree.
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src/event.c:
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Revise functions called at events so all have the same signature,
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modulo pointer types.
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src/expr.c:
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With -b, avoid instrumenting constant ?: expressions.
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Fixed bug in wide-character literals.
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Fix allocation error for identifiers injected to quell
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undeclared identifier errors;
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Correct int type added to addresses in field offsets.
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src/gen.c:
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Made emitasm extern.
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src/input.c:
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Fixed bug in resynch that caused infinite loop.
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Added #ident recognition, which simply ignores it.
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src/symbolic.c:
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Revised symbolic back end to emit -0.0 correctly.
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Emit flags in symbolic output.
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src/bytecode.c:
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Fixed double output botch in defconst in bytecode backend.
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src/dagcheck.c:
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Added mssing cases in dagcheck's reduce for types signedptr
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and unsignedptr. Without these, reduce can fail.
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src/lex.c:
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Permit \ to escape newline in string literals.
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Fixed scon() so that it accepts and concatenates adjacent wide-character literals.
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src/main.c:
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Fixed long-standing bug in which -n, -b, -C, and -a options caused
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interface functions to be called before progbeg.
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src/mips.md:
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Fixed FP comparisons to handle NaNs correctly.
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Round up framesize to a multiple of 16 for Irix 6.x;
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added casts in defconst to discard unused bits.
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src/prof.c:
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Revise functions called at events so all have the same signature,
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modulo pointer types.
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Change ftype to build arbitrary prototypes.
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Fixed long-standing bug in which -n, -b, -C, and -a options caused
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interface functions to be called before progbeg.
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Also, added missing call to space.
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Relaxed assertion in loop that searches for
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embedded CALL nodes.
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Emit correct padding in generated -b strutures.
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Revised call hook to find CALL nodes embedded
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at any depth.
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Edited bbincr so that it doesn't inject increments in constant expressions.
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src/profio.c:
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Change compare's prototype to conform to ANSI standard;
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change calls to qsort accordingly.
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Fixed implicit assumption that execution point i in file f always
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refers to the same x,y. This isn't true for noweb files.
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src/simp.c:
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Made address interface function optional.
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Tighten test that avoids folding addressing expressions
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for switch tables when the offset exceeds 16 bits. Without
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this addition, lcc can emit erroneous "initializer must be
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constant" diagnostics.
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Revised simplify() so that if doesn't call address to
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fold (ADDGRP a n) when n exceeds 16 bits.
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Reordered tests in MOD+I case so expressions like 6%1 fold correctly.
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src/sparc.md:
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Fixed FP comparisons to handle NaNs correctly.
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Added casts in defconst() to emit constants with proper sizes.
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Replaced pseudo-instructions st2/ld2 with pairs of st/ld instructions.
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src/stmt.c:
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Fixed botch in 2.16 revision.
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Fixed return statement so that "return;" in a function that returns
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a value returns 0. Similar code is already in decl.nw.
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Resynch to distributable version.
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Used dynamic variables for loop and switch handles.
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Fixed bug in which functions that return const struct S {...} issued
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an incorrect diagnostic.
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Appended a missing \n to a warning.
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src/sym.c:
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Revised 2.19's code for comparing -0.0 and 0.0 so that it works
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correctly when long double's occupy more bytes than the actual
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values, as on the x86 under gcc.
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Fix constant() so that it treats -0.0 and +0.0 as different constants.
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Added newtable() to allocate empty symbol tables.
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src/trace.c:
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Revise functions called at events so all have the same signature,
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modulo pointer types.
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Change ftype to build arbitrary prototypes.
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Fixed long-standing bug in which -n, -b, -C, and -a options caused
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interface functions to be called before progbeg.
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src/tree.c:
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Correct revision 2.9's implementation of check to avoid
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superfluous diagnostics on widening conversions.
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Avoid diagnostics for superfluous widening conversions.
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src/types.c:
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Revise fieldmask definition so it works
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for all values of fieldsize.
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Change ftype to build arbitrary prototypes.
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src/x86.md:
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Fixed FP comparisons to handle NaNs correctly.
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Changed ARGB instruction sequence to decrement
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esp by the size of the structure rounded up to 4.
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Changed struct allignment to 1; this required changing local to
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insure that on-stack structs are aligned to at least 4 bytes.
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Added cast in defconst to eliminate extraneous bits.
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Fixed float-to-int conversions so they truncate properly;
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fixed assembler syntax errors on x86/linux.
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Fixed frame size adjustment for frames >= 4096; now calls _chkstk
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to allocate large frames.
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Fixed overly specific opcode for loading constants.
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Changed add/sub to addl/subl in potentially ambiguous
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instructions in the x86/linux back end.
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cpp/cpp.c:
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Added line to fix Nelson Beebe's bug using #defined x X.
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cpp/cpp.h:
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Revised to use stdio for output.
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Converted to use stdio for input.
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cpp/eval.c:
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Added evaluation stack overflow checks.
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Included stdio.h.
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cpp/getopt.c:
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Include <string.h>; cut decl. for strchr.
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cpp/hideset.c:
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Fixed potential sizeof botches.
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cpp/include.c:
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Revised to use stdio for output.
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Removed unused wd[].
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Fixed incorrect check of fopen return value.
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Converted to use stdio for input.
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cpp/lex.c:
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Fixed incorrect test of fd value; fixed comments.
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Converted to use stdio for input.
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cpp/macro.c:
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Fixed obscure bug that occurs when string literals are stored
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in read-only memory. -DX attempts to append a null byte to "1".
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Found by Nelson Beebe.
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Converted to use stdio for input.
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cpp/nlist.c:
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Removed unused wd[].
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Added #ident; ignored as for #pragma.
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cpp/tokens.c:
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Revised to use stdio for output.
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Fixed erroneous initialization and check of FILE * value.
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cpp/unix.c:
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Revised to use stdio for output.
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Fixed erroneous initialization and check of FILE * value.
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Converted to use stdio for input.
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etc/irix.c:
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Added -D_LONGLONG, because some SGI assume this.
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Reported by Nelson Beebe.
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Added -32 option to insure O32 object files and libraries are used.
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etc/lcc.c:
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Fixed -l file so that file doesn't have to exist.
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Changed \ to / at the end of Win32 include paths.
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Added casts and prototypes to make _spawnvp compatible
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with Win32 version.
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Permit -dynamic -static on all systems, using option to check
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for validity.
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Edited help messages.
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Look for -Wf-unsigned_char=1 and added
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-D__CHAR_IUNSIGNED__ and -U_CHAR_IS_SIGNED to the cpp
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command line. These options interact with changes to the
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standard header limits.h to set CHAR_MIN and CHAR_MAX correctly.
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Look for -Wf-wchar_t=... and define _WCHAR_T_SIZE appropriately,
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which interacts with stddef.h and stdlib.h to typedef wchar_t correctly.
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Fixed botch in initinputs that cleared LCCINPUTS.
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etc/win32.c:
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Added oldnames.lib to link command.
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Cut useless -align directive in ld command.
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include/*/*/limits.h:
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Corrected name: __CHAR_IS_UNSIGNED__ should be __CHAR_UNSIGNED__.
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Define CHAR_MIN/CHAR_MAX depending on defintion of __CHAR_IS_UNSIGNED__.
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include/*/*/locale.h:
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Change NULL to ((void*)0).
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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include/*/*/stdarg.h:
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Fixed typedef for __va_list so it's protected by #ifdef.
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Fixed missing #endif;
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protected definition of va_list by _VA_LIST_DEFINED.
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Changed the type of va_list.
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Insured only va_list was conditionally defined.
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Insured _VA_LIST is defined.
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Revised __va_arg macro to handle va_arg(float) correctly;
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this addition required a static double temporary, which is
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less than elegant and subject to order-of-evaluation bugs.
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include/*/*/stddef.h:
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Change NULL to ((void*)0).
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Added _x_T_DEFINED flag macros for Windows compatibility.
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Added code to typedef wchar_t to unsigned char, short, or int
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depending on the value of _WCHAR_T_SIZE.
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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include/*/*/stdio.h:
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Change NULL to ((void*)0).
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Added _x_T_DEFINED flag macros for Windows compatibility.
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Changed the type of va_list.
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Protected definition of size_t by _SIZE_T_DEFINED;
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added definition for va_list protected by _VA_LIST.
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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include/*/*/stdlib.h:
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Change NULL to ((void*)0).
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Added _x_T_DEFINED flag macros for Windows compatibility.
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Added code to typedef wchar_t to unsigned char, short, or int
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depending on the value of _WCHAR_T_SIZE.
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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include/*/*/string.h:
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Change NULL to ((void*)0).
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Added _x_T_DEFINED flag macros for Windows compatibility.
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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include/*/*/time.h:
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Change NULL to ((void*)0).
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Added _x_T_DEFINED flag macros for Windows compatibility.
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Protected definition of NULL;
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defined NULL as 0L on osf systems.
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lburg/lburg.c:
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Simplified use of va_arg to accommodate gcc bug.
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Added ()s to avoid bogus compilation error on Linux.
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lib/assert.c:
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Added EXPORT and default definition.
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lib/bbexit.c:
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Access _caller via indirection; add _setcallerp.
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Added EXPORT and default definition.
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Changed profiling counters to ints.
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lib/yynull.c:
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Added EXPORT and default definition.
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tst/cq.c:
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Added prototypes to function pointer initializations.
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