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PR driver/90983 - manual documents -Wno-stack-usage flag but it is unrecognized

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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.
This commit is contained in:
Martin Sebor 2020-04-23 17:49:01 -06:00
parent 9a453da5ca
commit ae962e573e
6 changed files with 55 additions and 0 deletions
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6
gcc/ChangeLog
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@ -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

12
gcc/common.opt
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@ -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.

7
gcc/testsuite/ChangeLog
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@ -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.

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gcc/testsuite/gcc.dg/Wframe-larger-than-3.c Normal file
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@ -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);
}

5
gcc/testsuite/gcc.dg/Wlarger-than4.c Normal file
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@ -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];

14
gcc/testsuite/gcc.dg/Wstack-usage.c Normal file
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@ -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);
}