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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-09-16 23:19:19 +0200 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-09-16 23:19:19 +0200 |
| commit | 517177692e00fd36d89f1aac389348c9598bc426 (patch) | |
| tree | 1b0825895125bac64012c7f1ee28a37712c7184b /validation/linear/bitfield-sign-unsigned.c | |
| parent | 24bdaac6682c36f5f7878321e8f9eb02c0993572 (diff) | |
| download | sparse-dev-517177692e00fd36d89f1aac389348c9598bc426.tar.gz | |
teach sparse about -funsigned-bitfields
Currently, Sparse treats 'plain' bitfields as unsigned.
However, this is this is inconsistent with how non-bitfield integers
are handled and with how GCC & clang handle bitfields.
So, teach sparse about '-funsigned-bitfields' and by default treat
these bitfields are signed, like done by GCC & clang and like done
for non-bitfield integers.
Also, avoid plain bitfields in IR related testcases.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'validation/linear/bitfield-sign-unsigned.c')
| -rw-r--r-- | validation/linear/bitfield-sign-unsigned.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/validation/linear/bitfield-sign-unsigned.c b/validation/linear/bitfield-sign-unsigned.c new file mode 100644 index 00000000..099edaad --- /dev/null +++ b/validation/linear/bitfield-sign-unsigned.c @@ -0,0 +1,13 @@ +struct s { + int f:2; +}; + +static int getf(struct s s) { return s.f; } + +/* + * check-name: bitfield-sign-unsigned + * check-command: test-linearize -fdump-ir=linearize -funsigned-bitfields $file + * + * check-output-ignore + * check-output-contains: zext\\. + */ |