On Mon, Jul 23, 2012 at 1:23 AM, Steven Bosscher wrote:
> Hello,
>
> This patch fixes PR53881 by making group_case_labels_stmt look at the
> CFG instead of relying on label equality.
>
> Bootstrapped&tested on powerpc64-unknown-linux-gnu. OK?
Ok.
Thanks,
Richard.
> Ciao!
> Steven
Hello,
This patch fixes PR53881 by making group_case_labels_stmt look at the
CFG instead of relying on label equality.
Bootstrapped&tested on powerpc64-unknown-linux-gnu. OK?
Ciao!
Steven
gcc/
PR tree-optimization/53881
* tree-cfg.c (group_case_labels_stmt): Look up the basic blo
Hello,
I was relying on the assumption that all case labels in a switch
vector that jump to the same target block would also have the same
CASE_LABEL. This isn't so for the test case of PR53881, where DCE
removes a dead statement but preserves a user label. Fortunately,
using find_edge in emit_cas
