From: Florian Krohm <flo2030@eich-krohm.de>
Date: Sun, 21 Sep 2025 21:03:55 +0000 (+0000)
Subject: s390: New testcase none/tests/s390x/hfp
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=78f1569e2235796256742d7c75763034677065af;p=thirdparty%2Fvalgrind.git

s390: New testcase none/tests/s390x/hfp

Containing the very few needed hexadecimal floating point insns.
Carved out of none/tests/s390x/bfp-2

Part of fixing https://bugs.kde.org/show_bug.cgi?id=509572
---

diff --git a/none/tests/s390x/Makefile.am b/none/tests/s390x/Makefile.am
index 98ef178e7..c1909da39 100644
--- a/none/tests/s390x/Makefile.am
+++ b/none/tests/s390x/Makefile.am
@@ -22,7 +22,7 @@ INSN_TESTS = clc clcle cvb cvd icm lpr tcxb lam_stam xc mvst add sub mul \
 	     vector_float add-z14 sub-z14 mul-z14 bic \
 	     misc3 vec2 vec2_float \
 	     dfp-1 dfp-2 dfp-3 dfp-4 dfpconv dfpext dfptest pfpo srnmt \
-	     fpext fixbr
+	     fpext fixbr hfp
 
 check_PROGRAMS = $(INSN_TESTS) \
 		 allexec \
diff --git a/none/tests/s390x/bfp-2.c b/none/tests/s390x/bfp-2.c
index 73349eddd..b8109ba88 100644
--- a/none/tests/s390x/bfp-2.c
+++ b/none/tests/s390x/bfp-2.c
@@ -71,26 +71,6 @@ void lcdbr(double in)
    printf("lcdbr  %f  -> %f\n", in, out);
 }
 
-void lder(double prev, float in)
-{
-   unsigned long out;
-
-   __asm__ volatile("lder %[prev],%[in]\n\t"
-                    "std %[prev],%[out]" :
-                    [out]"=R"(out) : [prev]"f"(prev), [in]"f"(in));
-   printf("lder  %f  -> %lx\n", in, out);
-}
-
-void lde(double prev, float in)
-{
-   unsigned long out;
-
-   __asm__ volatile("lde %[prev],%[in]\n\t"
-                    "std %[prev],%[out]" :
-                    [out]"=R"(out) : [prev]"f"(prev), [in]"R"(in));
-   printf("lde  %f  -> %lx\n", in, out);
-}
-
 int main(void)
 {
    // square root
@@ -118,11 +98,5 @@ int main(void)
    lcdbr(-17.5);   // 8 byte values
    lcdbr(234.5);   // 8 byte values
 
-   // load lengthened
-   lder(0.2, 321.5f);
-   lder(0.9, -8388607.f);
-   lde(0.2, -321.5f);
-   lde(0.9, 8388607.f);
-
    return 0;
 }
diff --git a/none/tests/s390x/bfp-2.stdout.exp b/none/tests/s390x/bfp-2.stdout.exp
index b1bc484c5..074180a27 100644
--- a/none/tests/s390x/bfp-2.stdout.exp
+++ b/none/tests/s390x/bfp-2.stdout.exp
@@ -12,7 +12,3 @@ lcebr  -23.500000  -> 23.500000
 lcebr  123.500000  -> -123.500000
 lcdbr  -17.500000  -> 17.500000
 lcdbr  234.500000  -> -234.500000
-lder  321.500000  -> 43a0c00000000000
-lder  -8388607.000000  -> cafffffe00000000
-lde  -321.500000  -> c3a0c00000000000
-lde  8388607.000000  -> 4afffffe00000000
diff --git a/none/tests/s390x/hfp.c b/none/tests/s390x/hfp.c
new file mode 100644
index 000000000..73f70c37c
--- /dev/null
+++ b/none/tests/s390x/hfp.c
@@ -0,0 +1,39 @@
+/* Hexadecimal Floating Point insns
+
+   HFP is generally not supported with very few exceptions.
+
+   Carved out of bfp-2.c with no modifications. */
+
+#include <stdio.h>
+
+void lder(double prev, float in)
+{
+   unsigned long out;
+
+   __asm__ volatile("lder %[prev],%[in]\n\t"
+                    "std %[prev],%[out]" :
+                    [out]"=R"(out) : [prev]"f"(prev), [in]"f"(in));
+   printf("lder  %f  -> %lx\n", in, out);
+}
+
+void lde(double prev, float in)
+{
+   unsigned long out;
+
+   __asm__ volatile("lde %[prev],%[in]\n\t"
+                    "std %[prev],%[out]" :
+                    [out]"=R"(out) : [prev]"f"(prev), [in]"R"(in));
+   printf("lde  %f  -> %lx\n", in, out);
+}
+
+int main(void)
+{
+   // load lengthened
+   lder(0.2, 321.5f);
+   lder(0.9, -8388607.f);
+   lde(0.2, -321.5f);
+   lde(0.9, 8388607.f);
+
+   return 0;
+}
+   
diff --git a/none/tests/s390x/hfp.stderr.exp b/none/tests/s390x/hfp.stderr.exp
new file mode 100644
index 000000000..139597f9c
--- /dev/null
+++ b/none/tests/s390x/hfp.stderr.exp
@@ -0,0 +1,2 @@
+
+
diff --git a/none/tests/s390x/hfp.stdout.exp b/none/tests/s390x/hfp.stdout.exp
new file mode 100644
index 000000000..2e3e77bb7
--- /dev/null
+++ b/none/tests/s390x/hfp.stdout.exp
@@ -0,0 +1,4 @@
+lder  321.500000  -> 43a0c00000000000
+lder  -8388607.000000  -> cafffffe00000000
+lde  -321.500000  -> c3a0c00000000000
+lde  8388607.000000  -> 4afffffe00000000
diff --git a/none/tests/s390x/hfp.vgtest b/none/tests/s390x/hfp.vgtest
new file mode 100644
index 000000000..296bd099a
--- /dev/null
+++ b/none/tests/s390x/hfp.vgtest
@@ -0,0 +1 @@
+prog: hfp