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authorhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2004-09-04 09:05:53 +0000
committerhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2004-09-04 09:05:53 +0000
commit3df331174c48e54a560c6da03a6131db3d0994a3 (patch)
tree26ace95fc23681b5f767a4b940fe57f0826387c6 /gcc/passes.c
parentc49547c45490b7a0c0281d90f79848aa3191ba88 (diff)
downloadgcc-3df331174c48e54a560c6da03a6131db3d0994a3.tar.gz
* passes.c (rest_of_clean_state): Decompose the instruction stream.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87080 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/passes.c')
-rw-r--r--gcc/passes.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/passes.c b/gcc/passes.c
index 7c6f0024604..a125c71b701 100644
--- a/gcc/passes.c
+++ b/gcc/passes.c
@@ -1634,6 +1634,18 @@ static void
rest_of_clean_state (void)
{
coverage_end_function ();
+ rtx insn, next;
+
+ /* It is very important to decompose the RTL instruction chain here:
+ debug information keeps pointing into CODE_LABEL insns inside the function
+ body. If these remain pointing to the other insns, we end up preserving
+ whole RTL chain and attached detailed debug info in memory. */
+ for (insn = get_insns (); insn; insn = next)
+ {
+ next = NEXT_INSN (insn);
+ NEXT_INSN (insn) = NULL;
+ PREV_INSN (insn) = NULL;
+ }
/* In case the function was not output,
don't leave any temporary anonymous types