From: Philipp Tomsich Date: Sun, 3 Oct 2021 21:42:42 +0000 (+0200) Subject: tcg: add dup_const_tl wrapper X-Git-Tag: v6.2.0-rc0~68^2~25 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db637f270b52f8c2a1c55e7e707532532295715c;p=thirdparty%2Fqemu.git 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 Signed-off-by: Philipp Tomsich Message-Id: <20211003214243.3813425-1-philipp.tomsich@vrull.eu> Signed-off-by: Richard Henderson --- diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 44ccd86f3ea..1bb6c0ce3e1 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. */