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| author | Richard Earnshaw <rearnsha@arm.com> | 2000-08-21 09:18:05 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2000-08-21 09:18:05 +0000 |
| commit | 056b68414ebe6f82a052ae1aaf1ea5c4c6d2bcaf (patch) | |
| tree | 69052589dd57c2361340b61497d40be53b2eea93 /gcc | |
| parent | 46639003c86c36421c93da0da89469d551a30884 (diff) | |
| download | gcc-056b68414ebe6f82a052ae1aaf1ea5c4c6d2bcaf.zip gcc-056b68414ebe6f82a052ae1aaf1ea5c4c6d2bcaf.tar.gz gcc-056b68414ebe6f82a052ae1aaf1ea5c4c6d2bcaf.tar.bz2 | |
flow.c (init_propagate_block_info): Handle SUBREG in a jump condition expression.
* flow.c (init_propagate_block_info): Handle SUBREG in a jump
condition expression.
From-SVN: r35835
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/flow.c | 10 |
2 files changed, 13 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9d1c66e..53d0e6c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-08-21 Richard Earnshaw <rearnsha@arm.com> + + * flow.c (init_propagate_block_info): Handle SUBREG in a jump + condition expression. + 2000-08-20 Richard Henderson <rth@cygnus.com> * flow.c (merge_blocks_nomove): Don't seek back past the bb note. @@ -3727,9 +3727,15 @@ init_propagate_block_info (bb, live, local_set, flags) if (bitmap_operation (diff, bb_true->global_live_at_start, bb_false->global_live_at_start, BITMAP_XOR)) { - if (GET_CODE (XEXP (cond_true, 0)) != REG) + rtx reg = XEXP (cond_true, 0); + + if (GET_CODE (reg) == SUBREG) + reg = SUBREG_REG (reg); + + if (GET_CODE (reg) != REG) abort (); - SET_REGNO_REG_SET (pbi->reg_cond_reg, REGNO (XEXP (cond_true, 0))); + + SET_REGNO_REG_SET (pbi->reg_cond_reg, REGNO (reg)); /* For each such register, mark it conditionally dead. */ EXECUTE_IF_SET_IN_REG_SET |