mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
27c5e756a2
With -O included in CFLAGS it fails to build with:
../sysdeps/ieee754/ldbl-96/e_jnl.c: In function '__ieee754_jnl':
../sysdeps/ieee754/ldbl-96/e_jnl.c:146:20: error: 'temp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
b = invsqrtpi * temp / sqrtl (x);
~~~~~~~~~~^~~~~~
../sysdeps/ieee754/ldbl-96/e_jnl.c: In function '__ieee754_ynl':
../sysdeps/ieee754/ldbl-96/e_jnl.c:375:16: error: 'temp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
b = invsqrtpi * temp / sqrtl (x);
~~~~~~~~~~^~~~~~
../sysdeps/ieee754/dbl-64/e_jn.c: In function '__ieee754_jn':
../sysdeps/ieee754/dbl-64/e_jn.c:113:20: error: 'temp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
b = invsqrtpi * temp / sqrt (x);
~~~~~~~~~~^~~~~~
../sysdeps/ieee754/dbl-64/e_jn.c: In function '__ieee754_yn':
../sysdeps/ieee754/dbl-64/e_jn.c:320:16: error: 'temp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
b = invsqrtpi * temp / sqrt (x);
~~~~~~~~~~^~~~~~
Build tested with Yocto for ARM, AARCH64, X86, X86_64, PPC, MIPS, MIPS64
with -O, -O1, -Os.
For AARCH64 it needs one more fix in locale for -Os:
https://sourceware.org/ml/libc-alpha/2018-09/msg00539.html
[BZ #19444]
* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Use
__builtin_unreachable for default case in switch.
(__ieee754_yn): Likewise.
* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl): Likewise.
* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl): Likewise.
|
||
|---|---|---|
| .. | ||
| bits | ||
| include/bits | ||
| e_acoshl.c | ||
| e_asinl.c | ||
| e_atanhl.c | ||
| e_coshl.c | ||
| e_gammal_r.c | ||
| e_hypotl.c | ||
| e_j0l.c | ||
| e_j1l.c | ||
| e_jnl.c | ||
| e_lgammal_r.c | ||
| e_rem_pio2l.c | ||
| e_sinhl.c | ||
| gamma_product.c | ||
| gamma_productl.c | ||
| k_cosl.c | ||
| k_sinl.c | ||
| k_tanl.c | ||
| ldbl2mpn.c | ||
| lgamma_negl.c | ||
| lgamma_product.c | ||
| lgamma_productl.c | ||
| Makefile | ||
| math_ldbl.h | ||
| math-nan-payload-ldouble.h | ||
| mpn2ldbl.c | ||
| printf_fphex.c | ||
| s_asinhl.c | ||
| s_cbrtl.c | ||
| s_copysignl.c | ||
| s_cosl.c | ||
| s_daddl.c | ||
| s_ddivl.c | ||
| s_dmull.c | ||
| s_dsubl.c | ||
| s_erfl.c | ||
| s_faddl.c | ||
| s_fdivl.c | ||
| s_fma.c | ||
| s_fmal.c | ||
| s_fmull.c | ||
| s_frexpl.c | ||
| s_fromfpl_main.c | ||
| s_fromfpl.c | ||
| s_fromfpxl.c | ||
| s_fsubl.c | ||
| s_getpayloadl.c | ||
| s_iscanonicall.c | ||
| s_issignalingl.c | ||
| s_llrintl.c | ||
| s_llroundl.c | ||
| s_lrintl.c | ||
| s_lroundl.c | ||
| s_modfl.c | ||
| s_nexttoward.c | ||
| s_nexttowardf.c | ||
| s_nextupl.c | ||
| s_remquol.c | ||
| s_roundevenl.c | ||
| s_roundl.c | ||
| s_scalblnl.c | ||
| s_setpayloadl_main.c | ||
| s_setpayloadl.c | ||
| s_setpayloadsigl.c | ||
| s_signbitl.c | ||
| s_sincosl.c | ||
| s_sinl.c | ||
| s_tanhl.c | ||
| s_tanl.c | ||
| s_totalorderl.c | ||
| s_totalordermagl.c | ||
| s_ufromfpl.c | ||
| s_ufromfpxl.c | ||
| strtold_l.c | ||
| t_sincosl.c | ||
| test-canonical-ldbl-96.c | ||
| test-totalorderl-ldbl-96.c | ||
| x2y2m1.c | ||
| x2y2m1l.c | ||