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| author | Jim Wilson <wilson@gcc.gnu.org> | 1994-07-18 18:58:06 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1994-07-18 18:58:06 -0700 |
| commit | 8c4f5c09f073aa9cf6991212446510634c4fba16 (patch) | |
| tree | 64e3f13959979380a916d0b980f961018a8622df /gcc | |
| parent | 98068ba2d74c5bc65dd48973cc6dfd727ffeeef3 (diff) | |
| download | gcc-8c4f5c09f073aa9cf6991212446510634c4fba16.zip gcc-8c4f5c09f073aa9cf6991212446510634c4fba16.tar.gz gcc-8c4f5c09f073aa9cf6991212446510634c4fba16.tar.bz2 | |
(move_movables): Aviod lossage when CALL_INSN_FUNCTION_USAGE
is NULL.
From-SVN: r7777
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/loop.c | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -1791,8 +1791,9 @@ move_movables (movables, threshold, insn_count, loop_start, end, nregs) /* Because the USAGE information potentially contains objects other than hard registers we need to copy it. */ - CALL_INSN_FUNCTION_USAGE (i1) = - copy_rtx (CALL_INSN_FUNCTION_USAGE (temp)); + if (CALL_INSN_FUNCTION_USAGE (temp)) + CALL_INSN_FUNCTION_USAGE (i1) = + copy_rtx (CALL_INSN_FUNCTION_USAGE (temp)); } else i1 = emit_insn_before (body, loop_start); @@ -1834,8 +1835,9 @@ move_movables (movables, threshold, insn_count, loop_start, end, nregs) /* Because the USAGE information potentially contains objects other than hard registers we need to copy it. */ - CALL_INSN_FUNCTION_USAGE (i1) = - copy_rtx (CALL_INSN_FUNCTION_USAGE (p)); + if (CALL_INSN_FUNCTION_USAGE (p)) + CALL_INSN_FUNCTION_USAGE (i1) = + copy_rtx (CALL_INSN_FUNCTION_USAGE (p)); } else i1 = emit_insn_before (PATTERN (p), loop_start); |