re PR target/36133 (GCC creates suboptimal ASM : Code includes unneeded TST instructions)
2008-11-19 Andrew Stubbs <ams@codesourcery.com>
gcc/
PR target/36133
* config/m68k/m68k.h (CC_OVERFLOW_UNUSABLE, CC_NO_CARRY): New defines.
* config/m68k/m68k.c (notice_update_cc): Set cc_status properly for
shift instructions.
* config/m68k/m68k.md: Adjust all conditional branches that use the
carry and overflow flags so they understand CC_OVERFLOW_UNUSABLE.
gcc/testsuite/
PR target/36133
* gcc.target/m68k/pr36133.c: New test.
From-SVN: r141999