diff options
| author | Richard Biener <rguenther@suse.de> | 2023-01-18 14:54:33 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-01-18 14:57:24 +0100 |
| commit | d4abe5c456a3023f61c3e053255b7dd72ca0d7ec (patch) | |
| tree | 469f11009a68d7fde17b31a70790deb9f7ac28eb | |
| parent | ddbe758b1742699481886fffa2afe17c28ec5315 (diff) | |
| download | gcc-d4abe5c456a3023f61c3e053255b7dd72ca0d7ec.zip gcc-d4abe5c456a3023f61c3e053255b7dd72ca0d7ec.tar.gz gcc-d4abe5c456a3023f61c3e053255b7dd72ca0d7ec.tar.bz2 | |
lto/108445 - avoid LTO decl wrapping being confused by tree sharing
r13-4743 exposed more tree sharing which runs into a latent issue
with LTO decl wrapping during streaming. The following adds a
testcase triggering the issue.
PR lto/108445
* gcc.dg/lto/pr108445_0.c: New testcase.
* gcc.dg/lto/pr108445_1.c: Likewise.
| -rw-r--r-- | gcc/testsuite/gcc.dg/lto/pr108445_0.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/lto/pr108445_1.c | 19 |
2 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/lto/pr108445_0.c b/gcc/testsuite/gcc.dg/lto/pr108445_0.c new file mode 100644 index 0000000..06dac69 --- /dev/null +++ b/gcc/testsuite/gcc.dg/lto/pr108445_0.c @@ -0,0 +1,4 @@ +/* { dg-lto-do link } */ +/* { dg-lto-options { "-g -O2 -flto" } } */ + +int gArray[16]; diff --git a/gcc/testsuite/gcc.dg/lto/pr108445_1.c b/gcc/testsuite/gcc.dg/lto/pr108445_1.c new file mode 100644 index 0000000..50db9fe --- /dev/null +++ b/gcc/testsuite/gcc.dg/lto/pr108445_1.c @@ -0,0 +1,19 @@ +extern int gArray[]; + +int foo(int *a) +{ + int *p = a; + + return *p; +} + +int main(int argc, char *argv[]) +{ + if (argc & 1) + gArray[argc - 1] = 1; + + if (argc > 1) + return foo(gArray); + + return 0; +} |