7 files changed, 32 insertions, 39 deletions
diff --git a/tests/tcg/s390x/exrl-trt.c b/tests/tcg/s390x/exrl-trt.c
index 16711a3181..451f777b9d 100644
--- a/tests/tcg/s390x/exrl-trt.c
+++ b/tests/tcg/s390x/exrl-trt.c
@@ -5,8 +5,8 @@ int main(void)
 {
     char op1[] = "hello";
     char op2[256];
-    uint64_t r1 = 0xffffffffffffffffull;
-    uint64_t r2 = 0xffffffffffffffffull;
+    register uint64_t r1 asm("r1") = 0xffffffffffffffffull;
+    register uint64_t r2 asm("r2") = 0xffffffffffffffffull;
     uint64_t cc;
     int i;
 
@@ -21,8 +21,6 @@ int main(void)
         "    j 2f\n"
         "1:  trt 0(1,%[op1]),%[op2]\n"
         "2:  exrl %[op1_len],1b\n"
-        "    lgr %[r1],%%r1\n"
-        "    lgr %[r2],%%r2\n"
         "    ipm %[cc]\n"
         : [r1] "+r" (r1),
           [r2] "+r" (r2),
@@ -30,7 +28,7 @@ int main(void)
         : [op1] "a" (&op1),
           [op1_len] "a" (5),
           [op2] "Q" (op2)
-        : "r1", "r2", "cc");
+        : "cc");
     cc = (cc >> 28) & 3;
     if (cc != 2) {
         write(1, "bad cc\n", 7);
diff --git a/tests/tcg/s390x/exrl-trtr.c b/tests/tcg/s390x/exrl-trtr.c
index 5f30cda6bd..422f7f385a 100644
--- a/tests/tcg/s390x/exrl-trtr.c
+++ b/tests/tcg/s390x/exrl-trtr.c
@@ -5,8 +5,8 @@ int main(void)
 {
     char op1[] = {0, 1, 2, 3};
     char op2[256];
-    uint64_t r1 = 0xffffffffffffffffull;
-    uint64_t r2 = 0xffffffffffffffffull;
+    register uint64_t r1 asm("r1") = 0xffffffffffffffffull;
+    register uint64_t r2 asm("r2") = 0xffffffffffffffffull;
     uint64_t cc;
     int i;
 
@@ -21,8 +21,6 @@ int main(void)
         "    j 2f\n"
         "1:  trtr 3(1,%[op1]),%[op2]\n"
         "2:  exrl %[op1_len],1b\n"
-        "    lgr %[r1],%%r1\n"
-        "    lgr %[r2],%%r2\n"
         "    ipm %[cc]\n"
         : [r1] "+r" (r1),
           [r2] "+r" (r2),
@@ -30,7 +28,7 @@ int main(void)
         : [op1] "a" (&op1),
           [op1_len] "a" (3),
           [op2] "Q" (op2)
-        : "r1", "r2", "cc");
+        : "cc");
     cc = (cc >> 28) & 3;
     if (cc != 1) {
         write(1, "bad cc\n", 7);
diff --git a/tests/tcg/s390x/mie3-mvcrl.c b/tests/tcg/s390x/mie3-mvcrl.c
index 57b08e48d0..93c7b0a290 100644
--- a/tests/tcg/s390x/mie3-mvcrl.c
+++ b/tests/tcg/s390x/mie3-mvcrl.c
@@ -1,15 +1,17 @@
 #include <stdint.h>
 #include <string.h>
 
+
 static inline void mvcrl_8(const char *dst, const char *src)
 {
     asm volatile (
-    "llill %%r0, 8\n"
-    ".insn sse, 0xE50A00000000, 0(%[dst]), 0(%[src])"
-    : : [dst] "d" (dst), [src] "d" (src)
-    : "memory");
+        "llill %%r0, 8\n"
+        ".insn sse, 0xE50A00000000, 0(%[dst]), 0(%[src])"
+        : : [dst] "d" (dst), [src] "d" (src)
+        : "r0", "memory");
 }
 
+
 int main(int argc, char *argv[])
 {
     const char *alpha = "abcdefghijklmnop";
diff --git a/tests/tcg/s390x/mie3-sel.c b/tests/tcg/s390x/mie3-sel.c
index b0c5c9857d..0dfd532ed4 100644
--- a/tests/tcg/s390x/mie3-sel.c
+++ b/tests/tcg/s390x/mie3-sel.c
@@ -1,32 +1,27 @@
 #include <stdint.h>
 
+
 #define Fi3(S, ASM) uint64_t S(uint64_t a, uint64_t b, uint64_t c) \
-{                            \
-    uint64_t res = 0;        \
-    asm (                    \
-         "lg %%r2, %[a]\n"   \
-         "lg %%r3, %[b]\n"   \
-         "lg %%r0, %[c]\n"   \
-         "ltgr %%r0, %%r0\n" \
-         ASM                 \
-         "stg %%r0, %[res] " \
-         : [res] "=m" (res)  \
-         : [a] "m" (a),      \
-           [b] "m" (b),      \
-           [c] "m" (c)       \
-         : "r0", "r2",       \
-           "r3", "r4"        \
-    );                       \
-    return res;              \
+{                       \
+asm volatile (          \
+    "ltgr %[c], %[c]\n" \
+    ASM                 \
+    : [c] "+r" (c)      \
+    : [a]  "r" (a)      \
+    , [b]  "r" (b)      \
+);                      \
+    return c;           \
 }
 
-Fi3 (_selre,     ".insn rrf, 0xB9F00000, %%r0, %%r3, %%r2, 8\n")
-Fi3 (_selgrz,    ".insn rrf, 0xB9E30000, %%r0, %%r3, %%r2, 8\n")
-Fi3 (_selfhrnz,  ".insn rrf, 0xB9C00000, %%r0, %%r3, %%r2, 7\n")
+Fi3 (_selre,     ".insn rrf, 0xB9F00000, %[c], %[b], %[a], 8\n")
+Fi3 (_selgrz,    ".insn rrf, 0xB9E30000, %[c], %[b], %[a], 8\n")
+Fi3 (_selfhrnz,  ".insn rrf, 0xB9C00000, %[c], %[b], %[a], 7\n")
+
 
 int main(int argc, char *argv[])
 {
     uint64_t a = ~0, b = ~0, c = ~0;
+
     a =    _selre(0x066600000066ull, 0x066600000006ull, a);
     b =   _selgrz(0xF00D00000005ull, 0xF00D00000055ull, b);
     c = _selfhrnz(0x043200000044ull, 0x065400000004ull, c);
diff --git a/tests/tcg/s390x/mvc.c b/tests/tcg/s390x/mvc.c
index aa552d52e5..7ae4c44550 100644
--- a/tests/tcg/s390x/mvc.c
+++ b/tests/tcg/s390x/mvc.c
@@ -20,8 +20,8 @@ static inline void mvc_256(const char *dst, const char *src)
     asm volatile (
         "    mvc 0(256,%[dst]),0(%[src])\n"
         :
-        : [dst] "d" (dst),
-          [src] "d" (src)
+        : [dst] "a" (dst),
+          [src] "a" (src)
         : "memory");
 }
 
diff --git a/tests/tcg/s390x/mvo.c b/tests/tcg/s390x/mvo.c
index 5546fe2a97..0c3ecdde2e 100644
--- a/tests/tcg/s390x/mvo.c
+++ b/tests/tcg/s390x/mvo.c
@@ -11,8 +11,8 @@ int main(void)
     asm volatile (
         "    mvo 0(4,%[dest]),0(3,%[src])\n"
         :
-        : [dest] "d" (dest + 1),
-          [src] "d" (src + 1)
+        : [dest] "a" (dest + 1),
+          [src] "a" (src + 1)
         : "memory");
 
     for (i = 0; i < sizeof(expected); i++) {
diff --git a/tests/tcg/s390x/pack.c b/tests/tcg/s390x/pack.c
index 4be36f29a7..55e7e214e8 100644
--- a/tests/tcg/s390x/pack.c
+++ b/tests/tcg/s390x/pack.c
@@ -9,7 +9,7 @@ int main(void)
     asm volatile(
         "    pack 2(4,%[data]),2(4,%[data])\n"
         :
-        : [data] "r" (&data[0])
+        : [data] "a" (&data[0])
         : "memory");
     for (i = 0; i < 8; i++) {
         if (data[i] != exp[i]) {