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| author | Steve Baird <baird@adacore.com> | 2025-01-30 13:28:50 -0800 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@adacore.com> | 2025-06-05 15:39:45 +0200 |
| commit | 48a5910dde566180a0a0878651a78ccece89be45 (patch) | |
| tree | 5e83729db45ac6625d8881da539b525fb3a1e058 | |
| parent | 257a8dc92efbc5f523d388da10d63bf126af2aa3 (diff) | |
| download | gcc-48a5910dde566180a0a0878651a78ccece89be45.zip gcc-48a5910dde566180a0a0878651a78ccece89be45.tar.gz gcc-48a5910dde566180a0a0878651a78ccece89be45.tar.bz2 | |
ada: Exception-raising loop incorrectly eliminated
If the body of a loop includes a raise statement then the loop should not be
considered to be free of side-effects and therefore eligible for elimination
by the compiler.
gcc/ada/ChangeLog:
* sem_util.adb
(Side_Effect_Free_Statements): Return False if the statement list
includes an explicit (i.e. Comes_From_Source) raise statement.
| -rw-r--r-- | gcc/ada/sem_util.adb | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb index b833b35..7757e04 100644 --- a/gcc/ada/sem_util.adb +++ b/gcc/ada/sem_util.adb @@ -12425,9 +12425,14 @@ package body Sem_Util is while Present (Node) loop case Nkind (Node) is - when N_Null_Statement | N_Call_Marker | N_Raise_xxx_Error => + when N_Null_Statement | N_Call_Marker => null; + when N_Raise_xxx_Error => + if Comes_From_Source (Node) then + return False; + end if; + when N_Object_Declaration => if Present (Expression (Node)) and then not Side_Effect_Free (Expression (Node)) |