https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72850
Doug Gilmore <doug.gilmore at imgtec dot com> changed:
What |Removed |Added
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CC| |doug.gilmore at imgtec dot com
--- Comment #5 from Doug Gilmore <doug.gilmore at imgtec dot com> ---
Thanks Uri for the test case!
In case it wasn't clear, the switch statement should be removed at higher
levels
of optimization:
$ for i in 0 1 2 3 ; do ( set -x ; mips-mti-linux-gnu-gcc test.c -c -O$i
-fdump-tree-optimized ; egrep ";; Function|switch" test.c.169t.optimized )
done
+ mips-mti-linux-gnu-gcc test.c -c -O0 -fdump-tree-optimized
+ egrep ';; Function|switch' test.c.169t.optimized
;; Function is_digit (is_digit, funcdef_no=0, decl_uid=1406, symbol_order=0)
;; Function FMS (FMS, funcdef_no=1, decl_uid=1410, symbol_order=1)
switch (state_11) <default: <L46>, case 0: <L3>, case 2: <L14>, case 3:
<L34>, case 4: <L21>, case 5: <L27>, case 6: <L39>, case 7: <L43>>
+ mips-mti-linux-gnu-gcc test.c -c -O1 -fdump-tree-optimized
+ egrep ';; Function|switch' test.c.169t.optimized
;; Function FMS (FMS, funcdef_no=1, decl_uid=1410, symbol_order=1)
switch (state_98) <default: <L54>, case 0: <L3>, case 2: <L14>, case 3:
<L34>, case 4: <L21>, case 5: <L27>, case 6: <L39>, case 7: <L43>>
+ mips-mti-linux-gnu-gcc test.c -c -O2 -fdump-tree-optimized
+ egrep ';; Function|switch' test.c.169t.optimized
;; Function FMS (FMS, funcdef_no=1, decl_uid=1410, symbol_order=1)
+ mips-mti-linux-gnu-gcc test.c -c -O3 -fdump-tree-optimized
+ egrep ';; Function|switch' test.c.169t.optimized
;; Function FMS (FMS, funcdef_no=1, decl_uid=1410, symbol_order=1)
