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| author | Joseph Myers <joseph@codesourcery.com> | 2009-04-09 01:20:08 +0100 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2009-04-09 01:20:08 +0100 |
| commit | 17cede2e303aaba4e5a5b10509499ba02d3c68a4 (patch) | |
| tree | b5b2a508e50ee656a2b499eeebe913843eff682f /gcc/testsuite/gcc.dg/case-const-2.c | |
| parent | 74a6dc82c2408288afc9c44eaf53a22457d192d5 (diff) | |
| download | gcc-17cede2e303aaba4e5a5b10509499ba02d3c68a4.zip gcc-17cede2e303aaba4e5a5b10509499ba02d3c68a4.tar.gz gcc-17cede2e303aaba4e5a5b10509499ba02d3c68a4.tar.bz2 | |
re PR c/39613 (gcc 20090331 produces an error at mce64.c in kernel 2.6.29)
PR c/39613
* c-typeck.c (do_case): If case label is not an INTEGER_CST, fold
it and pedwarn if this results in an INTEGER_CST.
testsuite:
* gcc.dg/case-const-1.c, gcc.dg/case-const-2.c,
gcc.dg/case-const-3.c: New tests.
From-SVN: r145793
Diffstat (limited to 'gcc/testsuite/gcc.dg/case-const-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/case-const-2.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/case-const-2.c b/gcc/testsuite/gcc.dg/case-const-2.c new file mode 100644 index 0000000..9c119b0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/case-const-2.c @@ -0,0 +1,15 @@ +/* Test for case labels not integer constant expressions but folding + to integer constants (used in Linux kernel, PR 39613). */ +/* { dg-do compile } */ +/* { dg-options "-pedantic" } */ + +extern int i; +void +f (int c) +{ + switch (c) + { + case (1 ? 1 : i): /* { dg-warning "case label is not an integer constant expression" } */ + ; + } +} |