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| author | Jakub Jelinek <jakub@redhat.com> | 2016-06-20 23:41:20 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-06-20 23:41:20 +0200 |
| commit | 50aa64d58fd4cea25df2a9d9ddfc38e74dcdd94c (patch) | |
| tree | 73e0044763a990884447efafc1f4b1bfa26a1407 /gcc/testsuite/gcc.dg | |
| parent | 7a9df68ec6a8752f2e95e8ca1ca1fc53384c90c6 (diff) | |
| download | gcc-50aa64d58fd4cea25df2a9d9ddfc38e74dcdd94c.zip gcc-50aa64d58fd4cea25df2a9d9ddfc38e74dcdd94c.tar.gz gcc-50aa64d58fd4cea25df2a9d9ddfc38e74dcdd94c.tar.bz2 | |
re PR middle-end/71581 (ICE on valid code on x86_64-linux-gnu with -Wuninitialized (Segmentation fault))
PR middle-end/71581
* tree-ssa-uninit.c (warn_uninit): If EXPR and VAR are NULL,
see if T isn't anonymous SSA_NAME with COMPLEX_EXPR created
for conversion of scalar user var to complex type and use the
underlying SSA_NAME_VAR in that case. If EXPR is still NULL,
punt.
* gcc.dg/pr71581.c: New test.
From-SVN: r237621
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr71581.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr71581.c b/gcc/testsuite/gcc.dg/pr71581.c new file mode 100644 index 0000000..d82eb1e --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr71581.c @@ -0,0 +1,24 @@ +/* PR middle-end/71581 */ +/* { dg-do compile } */ +/* { dg-options "-Wuninitialized" } */ + +_Complex float +f1 (void) +{ + float x; + return x; /* { dg-warning "is used uninitialized in this function" } */ +} + +_Complex double +f2 (void) +{ + double x; + return x; /* { dg-warning "is used uninitialized in this function" } */ +} + +_Complex int +f3 (void) +{ + int x; + return x; /* { dg-warning "is used uninitialized in this function" } */ +} |