Backport a gcc3 fix:

	* cse.c (cse_end_of_basic_block): Don't return the end of a basi
	block reached by a branch if we're not going to actually process
	this block

1 files changed, 9 insertions, 0 deletions

diff --git a/gnu/egcs/gcc/cse.c b/gnu/egcs/gcc/cse.c
index 4a0f25983cf..08f5cfac593 100644
--- a/gnu/egcs/gcc/cse.c
+++ b/gnu/egcs/gcc/cse.c
@@ -8574,6 +8574,15 @@ cse_end_of_basic_block (insn, data, follow_jumps, after_loop, skip_blocks)
 	path_size--;
     }
 
+   /* If the first instruction is marked with QImode, that means we've
+      already processed this block.  Our caller will look at DATA->LAST
+      to figure out where to go next.  We want to return the next block
+      in the instruction stream, not some branched-to block somewhere
+      else.  We accomplish this by pretending our called forbid us to
+      follow jumps, or skip blocks.  */
+   if (GET_MODE (insn) == QImode)
+     follow_jumps = skip_blocks = 0;
+
   /* Scan to end of this basic block.  */
   while (p && GET_CODE (p) != CODE_LABEL)
     {