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authorMartin Sebor <msebor@redhat.com>2021-11-23 15:30:29 -0700
committerMartin Sebor <msebor@redhat.com>2021-11-23 15:36:03 -0700
commit30ba058f77eedfaf7a0582f5d42aff949710bce4 (patch)
treea2501014a7faf3b5a4dd6a64f1d8ee7a01733904 /gcc/common.opt
parentc59ec55c3459fba619e05ee7f59480b71e85ffd7 (diff)
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Implement -Winfinite-recursion [PR88232].
Resolves: PR middle-end/88232 - Please implement -Winfinite-recursion gcc/ChangeLog: PR middle-end/88232 * Makefile.in (OBJS): Add gimple-warn-recursion.o. * common.opt: Add -Winfinite-recursion. * doc/invoke.texi (-Winfinite-recursion): Document. * passes.def (pass_warn_recursion): Schedule a new pass. * tree-pass.h (make_pass_warn_recursion): Declare. * gimple-warn-recursion.c: New file. gcc/c-family/ChangeLog: PR middle-end/88232 * c.opt: Add -Winfinite-recursion. gcc/testsuite/ChangeLog: PR middle-end/88232 * c-c++-common/attr-used-5.c: Suppress valid warning. * c-c++-common/attr-used-6.c: Same. * c-c++-common/attr-used-9.c: Same. * g++.dg/warn/Winfinite-recursion-2.C: New test. * g++.dg/warn/Winfinite-recursion-3.C: New test. * g++.dg/warn/Winfinite-recursion.C: New test. * gcc.dg/Winfinite-recursion-2.c: New test. * gcc.dg/Winfinite-recursion.c: New test.
Diffstat (limited to 'gcc/common.opt')
-rw-r--r--gcc/common.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt
index db6010e..755e1a2 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -636,6 +636,10 @@ Wimplicit-fallthrough=
Common Var(warn_implicit_fallthrough) RejectNegative Joined UInteger Warning IntegerRange(0, 5)
Warn when a switch case falls through.
+Winfinite-recursion
+Var(warn_infinite_recursion) Warning
+Warn for infinitely recursive calls.
+
Winline
Common Var(warn_inline) Warning Optimization
Warn when an inlined function cannot be inlined.