[RFC PATCH 3/3] tests/tcg/ppc64le: R=1 test for paddi

[matheus.ferst@eldorado.org.br]

From: Matheus Ferst <matheus.ferst@eldorado.org.br>

This test exercise the R=1 path of paddi implementation using the
extended mnemonic "pla".

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 tests/tcg/ppc64/Makefile.target   |  3 ++-
 tests/tcg/ppc64le/Makefile.target |  3 ++-
 tests/tcg/ppc64le/pla.c           | 26 ++++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 tests/tcg/ppc64le/pla.c

diff --git a/tests/tcg/ppc64/Makefile.target b/tests/tcg/ppc64/Makefile.target
index 6eccd2c06f..a6cd7a21b2 100644
--- a/tests/tcg/ppc64/Makefile.target
+++ b/tests/tcg/ppc64/Makefile.target
@@ -11,8 +11,9 @@ endif
 bcdsub: CFLAGS += -mpower8-vector
 
 ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_POWER10),)
-PPC64LE_TESTS += pli_33bits
+PPC64LE_TESTS += pli_33bits pla
 endif
 pli_33bits: CFLAGS += -mpower10
+pla: CFLAGS += -mpower10
 
 TESTS += $(PPC64_TESTS)
diff --git a/tests/tcg/ppc64le/Makefile.target b/tests/tcg/ppc64le/Makefile.target
index 2003eab2df..db92b2ec99 100644
--- a/tests/tcg/ppc64le/Makefile.target
+++ b/tests/tcg/ppc64le/Makefile.target
@@ -10,8 +10,9 @@ endif
 bcdsub: CFLAGS += -mpower8-vector
 
 ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_POWER10),)
-PPC64LE_TESTS += pli_33bits
+PPC64LE_TESTS += pli_33bits pla
 endif
 pli_33bits: CFLAGS += -mpower10
+pla: CFLAGS += -mpower10
 
 TESTS += $(PPC64LE_TESTS)
diff --git a/tests/tcg/ppc64le/pla.c b/tests/tcg/ppc64le/pla.c
new file mode 100644
index 0000000000..4826579216
--- /dev/null
+++ b/tests/tcg/ppc64le/pla.c
@@ -0,0 +1,26 @@
+#include <assert.h>
+#include <unistd.h>
+#include <signal.h>
+
+int main(void)
+{
+    long unsigned int label, addr;
+    struct sigaction action;
+
+    action.sa_handler = _exit;
+    sigaction(SIGABRT, &action, NULL);
+
+    asm("insn:\n"
+        " lis    %0, insn@highest\n"
+        " addi   %0, %0, insn@higher\n"
+        " rldicr %0, %0, 32, 31\n"
+        " oris   %0, %0, insn@h\n"
+        " ori    %0, %0, insn@l\n"
+        " pla    %1, %2\n"
+        : "=r" (label), "=r" (addr)
+        : "i" (-5 * 4)); /* number of instruction between label and pla */
+    assert(addr == label);
+
+    return 0;
+}
+
-- 
2.25.1