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| author | Jakub Jelinek <jakub@redhat.com> | 2019-05-29 09:48:37 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2019-05-29 09:48:37 +0200 |
| commit | 357a352fe3a3a96b1a8c321f36a010e3798abdeb (patch) | |
| tree | eabc83199bfbf52976e7d3378a8a94f7124cc347 /gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c | |
| parent | b0df5ff8bec008165d90e57e64e3643196f527c2 (diff) | |
| download | gcc-357a352fe3a3a96b1a8c321f36a010e3798abdeb.zip gcc-357a352fe3a3a96b1a8c321f36a010e3798abdeb.tar.gz gcc-357a352fe3a3a96b1a8c321f36a010e3798abdeb.tar.bz2 | |
re PR c/90628 (__builtin_mul_overflow writes to const qualified integer)
PR c/90628
* c-common.c (check_builtin_function_arguments)
<case BUILTIN_*_OVERFLOW>: Diagnose pointer to const qualified integer
as last argument.
* c-c++-common/builtin-arith-overflow-3.c: New test.
From-SVN: r271732
Diffstat (limited to 'gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c')
| -rw-r--r-- | gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c b/gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c new file mode 100644 index 0000000..37a2259 --- /dev/null +++ b/gcc/testsuite/c-c++-common/builtin-arith-overflow-3.c @@ -0,0 +1,42 @@ +/* PR c/90628 */ +/* { dg-do compile } */ + +const int a = 1, b = 2, c = 3; +const long d = 4, e = 5, f = 6; +const long long g = 7, h = 8, i = 9; + +void +f1 () +{ + __builtin_add_overflow (a, b, &c); /* { dg-error "argument 3 in call to function '__builtin_add_overflow' has pointer to 'const' type" } */ +} + +void +f2 () +{ + __builtin_sub_overflow (d, e, &f); /* { dg-error "argument 3 in call to function '__builtin_sub_overflow' has pointer to 'const' type" } */ +} + +void +f3 () +{ + __builtin_mul_overflow (g, h, &i); /* { dg-error "argument 3 in call to function '__builtin_mul_overflow' has pointer to 'const' type" } */ +} + +void +f4 () +{ + __builtin_sadd_overflow (a, b, &c); /* { dg-warning "passing argument 3 of '__builtin_sadd_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */ +} /* { dg-error "invalid conversion from 'const int\\*' to 'int\\*'" "" { target c++ } .-1 } */ + +void +f5 () +{ + __builtin_ssubl_overflow (d, e, &f); /* { dg-warning "passing argument 3 of '__builtin_ssubl_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */ +} /* { dg-error "invalid conversion from 'const long int\\*' to 'long int\\*'" "" { target c++ } .-1 } */ + +void +f6 () +{ + __builtin_smulll_overflow (g, h, &i); /* { dg-warning "passing argument 3 of '__builtin_smulll_overflow' discards 'const' qualifier from pointer target type" "" { target c } } */ +} /* { dg-error "invalid conversion from 'const long long int\\*' to 'long long int\\*'" "" { target c++ } .-1 } */ |