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-rw-r--r--core/glibc/glibc-2.15-nearbyintf-rounding.patch75
1 files changed, 75 insertions, 0 deletions
diff --git a/core/glibc/glibc-2.15-nearbyintf-rounding.patch b/core/glibc/glibc-2.15-nearbyintf-rounding.patch
new file mode 100644
index 000000000..b2bb9caac
--- /dev/null
+++ b/core/glibc/glibc-2.15-nearbyintf-rounding.patch
@@ -0,0 +1,75 @@
+diff --git a/math/libm-test.inc b/math/libm-test.inc
+index c8186c8..1016753 100644
+--- a/math/libm-test.inc
++++ b/math/libm-test.inc
+@@ -4632,6 +4632,29 @@ nearbyint_test (void)
+ TEST_f_f (nearbyint, 524286.75, 524287.0);
+ TEST_f_f (nearbyint, 524288.75, 524289.0);
+
++ TEST_f_f (nearbyint, 1048576.75, 1048577.0);
++ TEST_f_f (nearbyint, 2097152.75, 2097153.0);
++ TEST_f_f (nearbyint, 2492472.75, 2492473.0);
++ TEST_f_f (nearbyint, 2886220.75, 2886221.0);
++ TEST_f_f (nearbyint, 3058792.75, 3058793.0);
++ TEST_f_f (nearbyint, -1048576.75, -1048577.0);
++ TEST_f_f (nearbyint, -2097152.75, -2097153.0);
++ TEST_f_f (nearbyint, -2492472.75, -2492473.0);
++ TEST_f_f (nearbyint, -2886220.75, -2886221.0);
++ TEST_f_f (nearbyint, -3058792.75, -3058793.0);
++#ifndef TEST_FLOAT
++ TEST_f_f (nearbyint, 70368744177664.75, 70368744177665.0);
++ TEST_f_f (nearbyint, 140737488355328.75, 140737488355329.0);
++ TEST_f_f (nearbyint, 281474976710656.75, 281474976710657.0);
++ TEST_f_f (nearbyint, 562949953421312.75, 562949953421313.0);
++ TEST_f_f (nearbyint, 1125899906842624.75, 1125899906842625.0);
++ TEST_f_f (nearbyint, -70368744177664.75, -70368744177665.0);
++ TEST_f_f (nearbyint, -140737488355328.75, -140737488355329.0);
++ TEST_f_f (nearbyint, -281474976710656.75, -281474976710657.0);
++ TEST_f_f (nearbyint, -562949953421312.75, -562949953421313.0);
++ TEST_f_f (nearbyint, -1125899906842624.75, -1125899906842625.0);
++#endif
++
+ END (nearbyint);
+ }
+
+diff --git a/sysdeps/ieee754/flt-32/s_nearbyintf.c b/sysdeps/ieee754/flt-32/s_nearbyintf.c
+index 04ef9ab..a6d602b 100644
+--- a/sysdeps/ieee754/flt-32/s_nearbyintf.c
++++ b/sysdeps/ieee754/flt-32/s_nearbyintf.c
+@@ -30,18 +30,12 @@ __nearbyintf(float x)
+ {
+ fenv_t env;
+ int32_t i0,j0,sx;
+- u_int32_t i,i1;
+ float w,t;
+ GET_FLOAT_WORD(i0,x);
+ sx = (i0>>31)&1;
+ j0 = ((i0>>23)&0xff)-0x7f;
+ if(j0<23) {
+ if(j0<0) {
+- if((i0&0x7fffffff)==0) return x;
+- i1 = (i0&0x07fffff);
+- i0 &= 0xfff00000;
+- i0 |= ((i1|-i1)>>9)&0x400000;
+- SET_FLOAT_WORD(x,i0);
+ libc_feholdexceptf (&env);
+ w = TWO23[sx]+x;
+ t = w-TWO23[sx];
+@@ -49,17 +43,11 @@ __nearbyintf(float x)
+ GET_FLOAT_WORD(i0,t);
+ SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
+ return t;
+- } else {
+- i = (0x007fffff)>>j0;
+- if((i0&i)==0) return x; /* x is integral */
+- i>>=1;
+- if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0);
+ }
+ } else {
+ if(__builtin_expect(j0==0x80, 0)) return x+x; /* inf or NaN */
+ else return x; /* x is integral */
+ }
+- SET_FLOAT_WORD(x,i0);
+ libc_feholdexceptf (&env);
+ w = TWO23[sx]+x;
+ t = w-TWO23[sx];