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| author | Richard Biener <rguenther@suse.de> | 2022-01-21 13:57:12 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-01-21 13:58:35 +0100 |
| commit | caca8eddd9356777f5fe28454eb083b1779adc26 (patch) | |
| tree | b7eee55081994def8a666a3b9f438f3ae9a013b5 /gcc | |
| parent | 9d7a84b96980d357bb9a3d368044fb18aab4aade (diff) | |
| download | gcc-caca8eddd9356777f5fe28454eb083b1779adc26.zip gcc-caca8eddd9356777f5fe28454eb083b1779adc26.tar.gz gcc-caca8eddd9356777f5fe28454eb083b1779adc26.tar.bz2 | |
sanitizer/99673 - bad -Wstringop-overread diagnostic with asan
The testcase got fixed by lowering of &MEM[ptr + CST] to ptr + CST.
2022-01-21 Richard Biener <rguenther@suse.de>
PR sanitizer/99673
* gcc.dg/asan/pr99673.c: New testcase.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.dg/asan/pr99673.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/asan/pr99673.c b/gcc/testsuite/gcc.dg/asan/pr99673.c new file mode 100644 index 0000000..05857fd --- /dev/null +++ b/gcc/testsuite/gcc.dg/asan/pr99673.c @@ -0,0 +1,27 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-Wstringop-overread" } */ + +struct B { + int i; + struct A { + short sa[8]; + } a[2]; +}; + +struct C { + char n, ax[]; +}; + +struct D { int i, j, k; }; + +int f (const short[8]); + +void g (struct C *pc, struct D *pd, int i) +{ + struct B *pb = (void *)pc->ax; + pd->i = pb->i; + + const short *psa = pb->a[i].sa; + if (f (psa)) + return; +} |