Your message dated Mon, 08 May 2006 22:46:34 +0200 with message-id <[EMAIL PROTECTED]> and subject line Bug#366377: gcc-4.1: does not optimize sibling calls with args has caused the attached Bug report to be marked as done.
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--- Begin Message ---Package: gcc-4.1 Version: 4.1.0-2 Severity: normal Trying to write an argument-passing tail call to another function doesn't seem to get optimized with -foptimize-sibling-calls no matter which other optimization options I turn on. Example, to be run through [gcc -foptimize-sibling-calls -O9 -S]: extern int foo(int x); int bar(void) { return foo(32); } On i386 this compiles to pushl %ebp movl %esp, %ebp subl $8, %esp movl $32, (%esp) call foo leave ret which doesn't correctly convert the call to foo into a tail call. ---> Drake Wilson -- System Information: Debian Release: testing/unstable APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 2.6.11 Locale: LANG=C, LC_CTYPE=C Versions of packages gcc-4.1 depends on: ii binutils 2.16.1cvs20051214-1 The GNU assembler, linker and bina ii cpp-4.1 4.1.0-2 The GNU C preprocessor ii gcc-4.1-base 4.1.0-2 The GNU Compiler Collection (base ii libc6 2.3.6-7 GNU C Library: Shared libraries ii libgcc1 1:4.1.0-2 GCC support library -- no debconf information
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--- Begin Message ---Drake Wilson <[EMAIL PROTECTED]> writes: > Glargh. You're right. I thought the calling convention would permit > it but it doesn't. Stupid me. > > At least the resolved bug report can stand as a warning to future > submitters, I suppose... close at will. OK. -- Falk
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