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| author | Philipp Tomsich <philipp.tomsich@vrull.eu> | 2021-10-03 23:42:42 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-10-05 16:53:17 -0700 |
| commit | db637f270b52f8c2a1c55e7e707532532295715c (patch) | |
| tree | bb77bbef6263bd475245faae8a4e02152fff7cc4 | |
| parent | 08a13c4b247338329951238a6c47b94f70c387d2 (diff) | |
| download | qemu-db637f270b52f8c2a1c55e7e707532532295715c.zip qemu-db637f270b52f8c2a1c55e7e707532532295715c.tar.gz qemu-db637f270b52f8c2a1c55e7e707532532295715c.tar.bz2 | |
tcg: add dup_const_tl wrapper
dup_const always generates a uint64_t, which may exceed the size of a
target_long (generating warnings with recent-enough compilers).
To ensure that we can use dup_const both for 64bit and 32bit targets,
this adds dup_const_tl, which either maps back to dup_const (for 64bit
targets) or provides a similar implementation using 32bit constants.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Message-Id: <20211003214243.3813425-1-philipp.tomsich@vrull.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | include/tcg/tcg.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 44ccd86..1bb6c0c 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -1272,6 +1272,18 @@ uint64_t dup_const(unsigned vece, uint64_t c); : (qemu_build_not_reached_always(), 0)) \ : dup_const(VECE, C)) +#if TARGET_LONG_BITS == 64 +# define dup_const_tl dup_const +#else +# define dup_const_tl(VECE, C) \ + (__builtin_constant_p(VECE) \ + ? ( (VECE) == MO_8 ? 0x01010101ul * (uint8_t)(C) \ + : (VECE) == MO_16 ? 0x00010001ul * (uint16_t)(C) \ + : (VECE) == MO_32 ? 0x00000001ul * (uint32_t)(C) \ + : (qemu_build_not_reached_always(), 0)) \ + : (target_long)dup_const(VECE, C)) +#endif + /* * Memory helpers that will be used by TCG generated code. */ |