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* [gcc/devel/gccgo] PR driver/90983 - manual documents `-Wno-stack-usage` flag but it is unrecognized
@ 2020-07-12 17:31 Ian Lance Taylor
0 siblings, 0 replies; only message in thread
From: Ian Lance Taylor @ 2020-07-12 17:31 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:ae962e573ea5063fda7e86f93d9622e64cea9a7e
commit ae962e573ea5063fda7e86f93d9622e64cea9a7e
Author: Martin Sebor <msebor@redhat.com>
Date: Thu Apr 23 17:49:01 2020 -0600
PR driver/90983 - manual documents `-Wno-stack-usage` flag but it is unrecognized
gcc/ChangeLog:
PR driver/90983
* common.opt (-Wno-frame-larger-than): New option.
(-Wno-larger-than, -Wno-stack-usage): Same.
gcc/testsuite/ChangeLog:
PR driver/90983
* gcc.dg/Wframe-larger-than-3.c: New test.
* gcc.dg/Wlarger-than4.c: New test.
* gcc.dg/Wstack-usage.c: New test.
Diff:
---
gcc/ChangeLog | 6 ++++++
gcc/common.opt | 12 ++++++++++++
gcc/testsuite/ChangeLog | 7 +++++++
gcc/testsuite/gcc.dg/Wframe-larger-than-3.c | 11 +++++++++++
gcc/testsuite/gcc.dg/Wlarger-than4.c | 5 +++++
gcc/testsuite/gcc.dg/Wstack-usage.c | 14 ++++++++++++++
6 files changed, 55 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5f27a8a08ae..cf97cfed626 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2020-04-23 Martin Sebor <msebor@redhat.com>
+
+ PR driver/90983
+ * common.opt (-Wno-frame-larger-than): New option.
+ (-Wno-larger-than, -Wno-stack-usage): Same.
+
2020-04-23 Andrew Stubbs <ams@codesourcery.com>
* config/gcn/gcn-valu.md (mov<mode>_exec): Swap the numbers on operands
diff --git a/gcc/common.opt b/gcc/common.opt
index 1e604ba9bb6..d33383b523c 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -601,6 +601,10 @@ Wframe-larger-than=
Common RejectNegative Joined Host_Wide_Int ByteSize Warning Var(warn_frame_larger_than_size) Init(HOST_WIDE_INT_MAX)
-Wframe-larger-than=<byte-size> Warn if a function's stack frame requires in excess of <byte-size>.
+Wno-frame-larger-than
+Common Alias(Wframe-larger-than=,18446744073709551615EiB,none) Warning
+Disable -Wframe-larger-than= warning. Equivalent to -Wframe-larger-than=<SIZE_MAX> or larger.
+
Wfree-nonheap-object
Common Var(warn_free_nonheap_object) Init(1) Warning
Warn when attempting to free a non-heap object.
@@ -631,6 +635,10 @@ Wlarger-than=
Common RejectNegative Joined Host_Wide_Int ByteSize Warning Var(warn_larger_than_size) Init(HOST_WIDE_INT_MAX)
-Wlarger-than=<byte-size> Warn if an object's size exceeds <byte-size>.
+Wno-larger-than
+Common Alias(Wlarger-than=,18446744073709551615EiB,none) Warning
+Disable -Wlarger-than= warning. Equivalent to -Wlarger-than=<SIZE_MAX> or larger.
+
Wnonnull-compare
Var(warn_nonnull_compare) Warning
Warn if comparing pointer parameter with nonnull attribute with NULL.
@@ -704,6 +712,10 @@ Wstack-usage=
Common Joined RejectNegative Host_Wide_Int ByteSize Var(warn_stack_usage) Warning Init(HOST_WIDE_INT_MAX)
-Wstack-usage=<byte-size> Warn if stack usage might exceed <byte-size>.
+Wno-stack-usage
+Common Alias(Wstack-usage=,18446744073709551615EiB,none) Warning
+Disable Wstack-usage= warning. Equivalent to Wstack-usage=<SIZE_MAX> or larger.
+
Wstrict-aliasing
Common Warning
Warn about code which might break strict aliasing rules.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7c6fc644332..86331cd1211 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2020-04-23 Martin Sebor <msebor@redhat.com>
+
+ PR driver/90983
+ * gcc.dg/Wframe-larger-than-3.c: New test.
+ * gcc.dg/Wlarger-than4.c: New test.
+ * gcc.dg/Wstack-usage.c: New test.
+
2020-04-23 Patrick Palka <ppalka@redhat.com>
* g++.dg/cpp0x/dependent3.C: New test.
diff --git a/gcc/testsuite/gcc.dg/Wframe-larger-than-3.c b/gcc/testsuite/gcc.dg/Wframe-larger-than-3.c
new file mode 100644
index 00000000000..ae5b2f497c7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wframe-larger-than-3.c
@@ -0,0 +1,11 @@
+/* PR 90983/manual documents `-Wno-stack-usage` flag, but it is unrecognized
+ { dg-do compile }
+ { dg-options "-Wall -Wframe-larger-than=123 -Wno-frame-larger-than" } */
+
+void f (void*);
+
+void g (void)
+{
+ char a [1234];
+ f (a);
+}
diff --git a/gcc/testsuite/gcc.dg/Wlarger-than4.c b/gcc/testsuite/gcc.dg/Wlarger-than4.c
new file mode 100644
index 00000000000..dd936c671cd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wlarger-than4.c
@@ -0,0 +1,5 @@
+/* PR 90983/manual documents `-Wno-stack-usage` flag, but it is unrecognized
+ { dg-do compile }
+ { dg-options "-Wall -Wlarger-than=123 -Wno-larger-than" } */
+
+char a [1234];
diff --git a/gcc/testsuite/gcc.dg/Wstack-usage.c b/gcc/testsuite/gcc.dg/Wstack-usage.c
new file mode 100644
index 00000000000..4738b69478b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstack-usage.c
@@ -0,0 +1,14 @@
+/* PR 90983/manual documents `-Wno-stack-usage` flag, but it is unrecognized
+ { dg-do compile }
+ { dg-options "-Wall -Wstack-usage=123 -Wno-stack-usage" } */
+
+void f (void*);
+
+void g (int n)
+{
+ if (n < 1234)
+ n = 1234;
+
+ char a [n];
+ f (a);
+}
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