From: Andrew Cagney <cagney@redhat.com>
Date: Thu, 30 Apr 1998 10:56:49 +0000 (+0000)
Subject: For multiply->add, loose underflow status, overflow when acc is
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ad14e4d1766fd89388ae55f9a02780a494e8f878;p=binutils-gdb.git

For multiply->add, loose underflow status, overflow when acc is
to-the-max, product can overflow result.
---

diff --git a/sim/testsuite/mips64r5900-elf/f-adda.s b/sim/testsuite/mips64r5900-elf/f-adda.s
new file mode 100644
index 00000000000..ecffa1a5cbe
--- /dev/null
+++ b/sim/testsuite/mips64r5900-elf/f-adda.s
@@ -0,0 +1,40 @@
+.include "t-macros.i"
+
+	start
+
+test_adda1:	
+	clearfcsr
+	loadfp $f1 4.0
+	loadfp $f2 0.1
+	adda.s $f1, $f2
+	checkacc 0 4.1
+
+test_add2:
+	clearfcsr
+	loadfp $f1 , -4.0
+	loadfp $f2 8.0
+	adda.s $f2, $f1
+	checkacc 0 4.0
+
+test_add3:
+	clearfcsr
+	loadfpmax $f1
+	loadfpmax $f2
+	adda.s $f2, $f1
+	checkaccmax FCSR_O
+
+test_add4:
+	clearfcsr
+	loadfpmax $f1
+	neg.s $f1, $f1
+	loadfpmax $f2
+	neg.s $f2, $f2
+	adda.s $f1, $f2
+	checkfcsr FCSR_O
+	clearfcsr
+	msub.s $f3, $f0, $f0
+	neg.s $f3, $f3
+	clearfcsr
+	checkfpmax 0 $f3
+
+	exit0