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| author | Martin Storsjö <martin@martin.st> | 2020-08-30 14:12:48 +0200 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2020-08-30 14:27:43 +0200 |
| commit | 023ddc41283b3508d32eb00bb45a7408cc196ffa (patch) | |
| tree | 7300185b9e93460684d359c44468aba92cdc4254 /winsup/cygwin/math/asinl.c | |
| parent | 0e6690a92ccda8b2d6a759bc1649c6160137d170 (diff) | |
| download | newlib-023ddc41283b3508d32eb00bb45a7408cc196ffa.zip newlib-023ddc41283b3508d32eb00bb45a7408cc196ffa.tar.gz newlib-023ddc41283b3508d32eb00bb45a7408cc196ffa.tar.bz2 | |
Cygwin: crt: Add "volatile" to all inline assembly snippets under math
On 32 bit x86, clang seems to miss loading input parameters based
on asm constraints for inline assembly that uses the x87 floating
registers, unless the snippet has got the volatile keyword.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'winsup/cygwin/math/asinl.c')
| -rw-r--r-- | winsup/cygwin/math/asinl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/winsup/cygwin/math/asinl.c b/winsup/cygwin/math/asinl.c index a4d8746..35df3b5 100644 --- a/winsup/cygwin/math/asinl.c +++ b/winsup/cygwin/math/asinl.c @@ -16,7 +16,8 @@ long double asinl (long double x) { long double res = 0.0L; - asm ( "fld %%st\n\t" + asm volatile ( + "fld %%st\n\t" "fmul %%st(0)\n\t" /* x^2 */ "fld1\n\t" "fsubp\n\t" /* 1 - x^2 */ |