From: Alexandre Oliva Date: Wed, 4 May 2011 03:37:40 +0000 (+0000) Subject: re PR debug/47994 (-fcompare-debug failure with -O2 -fpeel-loops -fno-rerun-cse-after... X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=01a5c0abdf290517ccca141e9a3e7481dec87324;p=gcc.git re PR debug/47994 (-fcompare-debug failure with -O2 -fpeel-loops -fno-rerun-cse-after-loop -fno-tree-loop-optimize -fno-web) PR debug/47994 PR debug/47919 * combine.c (try_combine): Skip debug insns at m_split tests. From-SVN: r173351 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 78b593f695c..ed3031f56ba 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-05-04 Alexandre Oliva + + PR debug/47994 + PR debug/47919 + * combine.c (try_combine): Skip debug insns at m_split tests. + 2011-04-26 Mark Wielaard PR42288 diff --git a/gcc/combine.c b/gcc/combine.c index 7bdbed4144c..0e6d65f8809 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3457,7 +3457,7 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p, newpat = m_split; } else if (m_split && NEXT_INSN (NEXT_INSN (m_split)) == NULL_RTX - && (next_real_insn (i2) == i3 + && (next_nonnote_nondebug_insn (i2) == i3 || ! use_crosses_set_p (PATTERN (m_split), DF_INSN_LUID (i2)))) { rtx i2set, i3set; @@ -3474,7 +3474,7 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p, is used between I2 and I3, we also can't use these insns. */ if (i2_code_number >= 0 && i2set && i3set - && (next_real_insn (i2) == i3 + && (next_nonnote_nondebug_insn (i2) == i3 || ! reg_used_between_p (SET_DEST (i2set), i2, i3))) insn_code_number = recog_for_combine (&newi3pat, i3, &new_i3_notes); @@ -3522,7 +3522,7 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p, || GET_MODE (*split) == VOIDmode || can_change_dest_mode (i2dest, added_sets_2, GET_MODE (*split))) - && (next_real_insn (i2) == i3 + && (next_nonnote_nondebug_insn (i2) == i3 || ! use_crosses_set_p (*split, DF_INSN_LUID (i2))) /* We can't overwrite I2DEST if its value is still used by NEWPAT. */