On 3/4/25 14:24, Alex Bennée wrote:
Clang complains:clang -O2 -m64 -mcx16 /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c -o test-i386-adcox -static /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c:32:26: error: invalid input constraint '0' in asm : "r" ((REG)-1), "0" (flags), "1" (out_adcx), "2" (out_adox)); ^ /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c:57:26: error: invalid input constraint '0' in asm : "r" ((REG)-1), "0" (flags), "1" (out_adcx), "2" (out_adox)); ^ 2 errors generated. Pointing out a numbered input constraint can't point to a read/write output [1]. Convert to a read-only input constraint to allow this. [1] https://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20101101/036036.html Signed-off-by: Alex Bennée <alex.ben...@linaro.org> Suggested-by: Daniel P. Berrangé <berra...@redhat.com>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
--- v2 - followed rth's suggestion and removed additional matches. --- tests/tcg/i386/test-i386-adcox.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/tcg/i386/test-i386-adcox.c b/tests/tcg/i386/test-i386-adcox.c index 16169efff8..d653fa86a7 100644 --- a/tests/tcg/i386/test-i386-adcox.c +++ b/tests/tcg/i386/test-i386-adcox.c @@ -53,8 +53,8 @@ void test_adcx_adox(uint32_t in_c, uint32_t in_o, REG adcx_operand, REG adox_ope "adcx %3, %1;" "adox %3, %2;" "pushf; pop %0" - : "+r" (flags), "+r" (out_adcx), "+r" (out_adox) - : "r" ((REG)-1), "0" (flags), "1" (out_adcx), "2" (out_adox)); + : "+r"(flags), "+r"(out_adcx), "+r"(out_adox) + : "r" ((REG)-1));assert(out_adcx == in_c + adcx_operand - 1);assert(out_adox == in_o + adox_operand - 1);
