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-rw-r--r--sysdeps/i386/fpu/libm-test-ulps52
-rw-r--r--sysdeps/ieee754/flt-32/e_lgammaf_r.c4
-rw-r--r--sysdeps/x86_64/fpu/libm-test-ulps56
3 files changed, 110 insertions, 2 deletions
diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps
index 8244863ef6..4759aa9f7f 100644
--- a/sysdeps/i386/fpu/libm-test-ulps
+++ b/sysdeps/i386/fpu/libm-test-ulps
@@ -5470,9 +5470,35 @@ double: 1
 idouble: 1
 ildouble: 1
 ldouble: 1
+Test "gamma (-0x1p-10)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+ildouble: 1
+ldouble: 1
+Test "gamma (-0x1p-15)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "gamma (-0x1p-20)":
+double: 1
+idouble: 1
+Test "gamma (-0x1p-30)":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "gamma (-0x1p-5)":
+double: 1
+idouble: 1
 Test "gamma (0.7)":
 float: 1
 ifloat: 1
+Test "gamma (0x1p-40)":
+ildouble: 1
+ldouble: 1
 Test "gamma (1.2)":
 double: 1
 float: 2
@@ -5723,9 +5749,35 @@ double: 1
 idouble: 1
 ildouble: 1
 ldouble: 1
+Test "lgamma (-0x1p-10)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+ildouble: 1
+ldouble: 1
+Test "lgamma (-0x1p-15)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "lgamma (-0x1p-20)":
+double: 1
+idouble: 1
+Test "lgamma (-0x1p-30)":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "lgamma (-0x1p-5)":
+double: 1
+idouble: 1
 Test "lgamma (0.7)":
 float: 1
 ifloat: 1
+Test "lgamma (0x1p-40)":
+ildouble: 1
+ldouble: 1
 Test "lgamma (1.2)":
 double: 1
 float: 2
diff --git a/sysdeps/ieee754/flt-32/e_lgammaf_r.c b/sysdeps/ieee754/flt-32/e_lgammaf_r.c
index 2e92269085..0dba9af8d7 100644
--- a/sysdeps/ieee754/flt-32/e_lgammaf_r.c
+++ b/sysdeps/ieee754/flt-32/e_lgammaf_r.c
@@ -150,8 +150,8 @@ __ieee754_lgammaf_r(float x, int *signgamp)
 	      *signgamp = -1;
 	    return one/fabsf(x);
 	  }
-	if(__builtin_expect(ix<0x1c800000, 0)) {
-	    /* |x|<2**-70, return -log(|x|) */
+	if(__builtin_expect(ix<0x30800000, 0)) {
+	    /* |x|<2**-30, return -log(|x|) */
 	    if(hx<0) {
 		*signgamp = -1;
 		return -__ieee754_logf(-x);
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 477eedc311..6fbfa64ae1 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -6222,11 +6222,39 @@ idouble: 1
 Test "gamma (-0.5)":
 ildouble: 1
 ldouble: 1
+Test "gamma (-0x1p-10)":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "gamma (-0x1p-15)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "gamma (-0x1p-20)":
+double: 1
+idouble: 1
+Test "gamma (-0x1p-30)":
+ildouble: 1
+ldouble: 1
+Test "gamma (-0x1p-5)":
+double: 1
+idouble: 1
 Test "gamma (0.7)":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+Test "gamma (0x1p-10)":
+float: 1
+ifloat: 1
+Test "gamma (0x1p-30)":
+double: 1
+idouble: 1
+Test "gamma (0x1p-40)":
+ildouble: 1
+ldouble: 1
 Test "gamma (1.2)":
 double: 1
 float: 2
@@ -6491,11 +6519,39 @@ ldouble: 2
 Test "lgamma (-0.5)":
 ildouble: 1
 ldouble: 1
+Test "lgamma (-0x1p-10)":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "lgamma (-0x1p-15)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "lgamma (-0x1p-20)":
+double: 1
+idouble: 1
+Test "lgamma (-0x1p-30)":
+ildouble: 1
+ldouble: 1
+Test "lgamma (-0x1p-5)":
+double: 1
+idouble: 1
 Test "lgamma (0.7)":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+Test "lgamma (0x1p-10)":
+float: 1
+ifloat: 1
+Test "lgamma (0x1p-30)":
+double: 1
+idouble: 1
+Test "lgamma (0x1p-40)":
+ildouble: 1
+ldouble: 1
 Test "lgamma (1.2)":
 double: 1
 float: 2