Fix exp2 errno setting on underflow (bug 16283).

1 files changed, 85 insertions, 85 deletions

diff --git a/math/auto-libm-test-out b/math/auto-libm-test-out
index 9b3c398893..4241399a9a 100644
--- a/math/auto-libm-test-out
+++ b/math/auto-libm-test-out
@@ -6725,30 +6725,30 @@ exp2 1e6
 = exp2 tonearest ldbl-128ibm 0xf.424p+16L : plus_infty : inexact-ok overflow errno-erange
 = exp2 towardzero ldbl-128ibm 0xf.424p+16L : 0xf.ffffffffffffbffffffffffffcp+1020L : inexact-ok overflow errno-erange-ok
 = exp2 upward ldbl-128ibm 0xf.424p+16L : plus_infty : inexact-ok overflow errno-erange
-exp2 -1e6 missing-errno
-= exp2 downward flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
+exp2 -1e6
+= exp2 downward flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 tonearest flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 towardzero flt-32 -0xf.424p+16f : 0x0p+0f : inexact-ok underflow errno-erange
 = exp2 upward flt-32 -0xf.424p+16f : 0x8p-152f : inexact-ok underflow errno-erange-ok
-= exp2 downward dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 tonearest dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 towardzero dbl-64 -0xf.424p+16 : 0x0p+0 : inexact-ok underflow errno-erange
 = exp2 upward dbl-64 -0xf.424p+16 : 0x4p-1076 : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-intel -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-intel -0xf.424p+16L : 0x8p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-m68k -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-m68k -0xf.424p+16L : 0x4p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.424p+16L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128ibm -0xf.424p+16L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128ibm -0xf.424p+16L : 0x4p-1076L : inexact-ok underflow errno-erange-ok
 exp2 max
 = exp2 downward flt-32 0xf.fffffp+124f : 0xf.fffffp+124f : inexact-ok overflow errno-erange-ok
@@ -6819,74 +6819,74 @@ exp2 max
 = exp2 tonearest ldbl-128ibm 0xf.ffffffffffffbffffffffffffcp+1020L : plus_infty : inexact-ok overflow errno-erange
 = exp2 towardzero ldbl-128ibm 0xf.ffffffffffffbffffffffffffcp+1020L : 0xf.ffffffffffffbffffffffffffcp+1020L : inexact-ok overflow errno-erange-ok
 = exp2 upward ldbl-128ibm 0xf.ffffffffffffbffffffffffffcp+1020L : plus_infty : inexact-ok overflow errno-erange
-exp2 -max missing-errno
-= exp2 downward flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
+exp2 -max
+= exp2 downward flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 tonearest flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 towardzero flt-32 -0xf.fffffp+124f : 0x0p+0f : inexact-ok underflow errno-erange
 = exp2 upward flt-32 -0xf.fffffp+124f : 0x8p-152f : inexact-ok underflow errno-erange-ok
-= exp2 downward dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 tonearest dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 towardzero dbl-64 -0xf.fffffp+124 : 0x0p+0 : inexact-ok underflow errno-erange
 = exp2 upward dbl-64 -0xf.fffffp+124 : 0x4p-1076 : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-intel -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-intel -0xf.fffffp+124L : 0x8p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-m68k -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-m68k -0xf.fffffp+124L : 0x4p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.fffffp+124L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128ibm -0xf.fffffp+124L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128ibm -0xf.fffffp+124L : 0x4p-1076L : inexact-ok underflow errno-erange-ok
-= exp2 downward dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 tonearest dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 towardzero dbl-64 -0xf.ffffffffffff8p+1020 : 0x0p+0 : inexact-ok underflow errno-erange
 = exp2 upward dbl-64 -0xf.ffffffffffff8p+1020 : 0x4p-1076 : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-intel -0xf.ffffffffffff8p+1020L : 0x8p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-m68k -0xf.ffffffffffff8p+1020L : 0x4p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.ffffffffffff8p+1020L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128ibm -0xf.ffffffffffff8p+1020L : 0x4p-1076L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-intel -0xf.fffffffffffffffp+16380L : 0x8p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-96-m68k -0xf.fffffffffffffffp+16380L : 0x4p-16448L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.fffffffffffffffp+16380L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.fffffffffffffffp+16380L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.fffffffffffffffffffffffffff8p+16380L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128 -0xf.ffffffffffffbffffffffffffcp+1020L : 0x4p-16496L : inexact-ok underflow errno-erange-ok
-= exp2 downward ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128ibm -0xf.ffffffffffffbffffffffffffcp+1020L : 0x4p-1076L : inexact-ok underflow errno-erange-ok
 exp2 0.75
 = exp2 downward flt-32 0xcp-4f : 0x1.ae89f8p+0f : inexact-ok
@@ -7038,10 +7038,10 @@ exp2 1023
 = exp2 tonearest ldbl-128ibm 0x3.ffp+8L : 0x8p+1020L : inexact-ok
 = exp2 towardzero ldbl-128ibm 0x3.ffp+8L : 0x8p+1020L : inexact-ok
 = exp2 upward ldbl-128ibm 0x3.ffp+8L : 0x8p+1020L : inexact-ok
-exp2 -1074 missing-errno
-= exp2 downward flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
+exp2 -1074
+= exp2 downward flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 tonearest flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 towardzero flt-32 -0x4.32p+8f : 0x0p+0f : inexact-ok underflow errno-erange
 = exp2 upward flt-32 -0x4.32p+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
 = exp2 downward dbl-64 -0x4.32p+8 : 0x4p-1076 : inexact-ok underflow-ok errno-erange-ok
 = exp2 tonearest dbl-64 -0x4.32p+8 : 0x4p-1076 : inexact-ok underflow-ok errno-erange-ok
@@ -7088,14 +7088,14 @@ exp2 16383
 = exp2 tonearest ldbl-128ibm 0x3.fffp+12L : plus_infty : inexact-ok overflow errno-erange
 = exp2 towardzero ldbl-128ibm 0x3.fffp+12L : 0xf.ffffffffffffbffffffffffffcp+1020L : inexact-ok overflow errno-erange-ok
 = exp2 upward ldbl-128ibm 0x3.fffp+12L : plus_infty : inexact-ok overflow errno-erange
-exp2 -16400 missing-errno
-= exp2 downward flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange errno-erange-ok
+exp2 -16400
+= exp2 downward flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 tonearest flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange
+= exp2 towardzero flt-32 -0x4.01p+12f : 0x0p+0f : inexact-ok underflow errno-erange
 = exp2 upward flt-32 -0x4.01p+12f : 0x8p-152f : inexact-ok underflow errno-erange-ok
-= exp2 downward dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 tonearest dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange
+= exp2 towardzero dbl-64 -0x4.01p+12 : 0x0p+0 : inexact-ok underflow errno-erange
 = exp2 upward dbl-64 -0x4.01p+12 : 0x4p-1076 : inexact-ok underflow errno-erange-ok
 = exp2 downward ldbl-96-intel -0x4.01p+12L : 0x1p-16400L : inexact-ok underflow-ok errno-erange-ok
 = exp2 tonearest ldbl-96-intel -0x4.01p+12L : 0x1p-16400L : inexact-ok underflow-ok errno-erange-ok
@@ -7109,9 +7109,9 @@ exp2 -16400 missing-errno
 = exp2 tonearest ldbl-128 -0x4.01p+12L : 0x1p-16400L : inexact-ok underflow-ok errno-erange-ok
 = exp2 towardzero ldbl-128 -0x4.01p+12L : 0x1p-16400L : inexact-ok underflow-ok errno-erange-ok
 = exp2 upward ldbl-128 -0x4.01p+12L : 0x1p-16400L : inexact-ok underflow-ok errno-erange-ok
-= exp2 downward ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 tonearest ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
-= exp2 towardzero ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange errno-erange-ok
+= exp2 downward ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 tonearest ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange
+= exp2 towardzero ldbl-128ibm -0x4.01p+12L : 0x0p+0L : inexact-ok underflow errno-erange
 = exp2 upward ldbl-128ibm -0x4.01p+12L : 0x4p-1076L : inexact-ok underflow errno-erange-ok
 expm1 0
 = expm1 downward flt-32 0x0p+0f : 0x0p+0f : inexact-ok