[Guile-commits] 37/86: Tests for some div operations

[Andy Wingo]

wingo pushed a commit to branch lightening
in repository guile.

commit b371e913ffd5c3198ff77312051c900dac54e0cd
Author: Andy Wingo <address@hidden>
Date:   Mon Mar 25 21:11:44 2019 +0100

    Tests for some div operations
---
 .gitignore          |  2 ++
 tests/test-divr.c   | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/test-divr_u.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 123 insertions(+)

diff --git a/.gitignore b/.gitignore
index 24586fc..5c0fa51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@
 /tests/test-subx
 /tests/test-qmulr
 /tests/test-qmulr_u
+/tests/test-divr
+/tests/test-divr_u
diff --git a/tests/test-divr.c b/tests/test-divr.c
new file mode 100644
index 0000000..389a69d
--- /dev/null
+++ b/tests/test-divr.c
@@ -0,0 +1,63 @@
+#include "test.h"
+
+static void
+run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size)
+{
+  jit_begin(j, arena_base, arena_size);
+
+  const jit_arg_abi_t abi[] = { JIT_ARG_ABI_INTMAX, JIT_ARG_ABI_INTMAX };
+  jit_arg_t args[2];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 }, { .gpr=JIT_R1 }};
+
+  jit_receive(j, 2, abi, args);
+  jit_load_args(j, 2, abi, args, regs);
+
+  jit_divr(j, JIT_R0, JIT_R0, JIT_R1);
+  jit_retr(j, JIT_R0);
+
+  size_t size = 0;
+  void* ret = jit_end(j, &size);
+
+  intmax_t (*f)(intmax_t, intmax_t) = ret;
+
+  ASSERT(f(0x7fffffff, 1) == 0x7fffffff);
+  ASSERT(f(1, 0x7fffffff) == 0);
+  ASSERT(f(0x80000000, 1) == 0x80000000);
+  ASSERT(f(1, 0x80000000) == 0);
+  ASSERT(f(0x7fffffff, 2) == 0x3fffffff);
+  ASSERT(f(2, 0x7fffffff) == 0);
+  ASSERT(f(2, 0x80000000) == 0);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0);
+  ASSERT(f(0, 0x7fffffff) == 0);
+  ASSERT(f(0xffffffff, 0xffffffff) == 1);
+#if __WORDSIZE == 32
+  ASSERT(f(0x80000000, 2) == 0xc0000000);
+  ASSERT(f(0x80000000, 0x7fffffff) == 0xffffffff);
+  ASSERT(f(0x7fffffff, 0xffffffff) == 0x80000001);
+  ASSERT(f(0xffffffff, 0x7fffffff) == 0);
+#else
+  ASSERT(f(0x80000000, 2) == 0x40000000);
+  ASSERT(f(0x80000000, 0x7fffffff) == 1);
+  ASSERT(f(0x7fffffff, 0xffffffff) == 0);
+  ASSERT(f(0xffffffff, 0x7fffffff) == 2);
+  ASSERT(f(0x7fffffffffffffff, 1) == 0x7fffffffffffffff);
+  ASSERT(f(1, 0x7fffffffffffffff) == 0);
+  ASSERT(f(0x8000000000000000, 1) == 0x8000000000000000);
+  ASSERT(f(1, 0x8000000000000000) == 0);
+  ASSERT(f(0x7fffffffffffffff, 2) == 0x3fffffffffffffff);
+  ASSERT(f(2, 0x7fffffffffffffff) == 0);
+  ASSERT(f(0x8000000000000000, 2) == 0xc000000000000000);
+  ASSERT(f(2, 0x8000000000000000) == 0);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == 0);
+  ASSERT(f(0x8000000000000000, 0x7fffffffffffffff) == 0xffffffffffffffff);
+  ASSERT(f(0x7fffffffffffffff, 0xffffffffffffffff) == 0x8000000000000001);
+  ASSERT(f(0xffffffffffffffff, 0x7fffffffffffffff) == 0);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == 1);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/test-divr_u.c b/tests/test-divr_u.c
new file mode 100644
index 0000000..177c609
--- /dev/null
+++ b/tests/test-divr_u.c
@@ -0,0 +1,58 @@
+#include "test.h"
+
+static void
+run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size)
+{
+  jit_begin(j, arena_base, arena_size);
+
+  const jit_arg_abi_t abi[] = { JIT_ARG_ABI_INTMAX, JIT_ARG_ABI_INTMAX };
+  jit_arg_t args[2];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 }, { .gpr=JIT_R1 }};
+
+  jit_receive(j, 2, abi, args);
+  jit_load_args(j, 2, abi, args, regs);
+
+  jit_divr_u(j, JIT_R0, JIT_R0, JIT_R1);
+  jit_retr(j, JIT_R0);
+
+  size_t size = 0;
+  void* ret = jit_end(j, &size);
+
+  intmax_t (*f)(intmax_t, intmax_t) = ret;
+
+  ASSERT(f(0x7fffffff, 1) == 0x7fffffff);
+  ASSERT(f(1, 0x7fffffff) == 0);
+  ASSERT(f(0x80000000, 1) == 0x80000000);
+  ASSERT(f(1, 0x80000000) == 0);
+  ASSERT(f(0x7fffffff, 2) == 0x3fffffff);
+  ASSERT(f(2, 0x7fffffff) == 0);
+  ASSERT(f(0x80000000, 2) == 0x40000000);
+  ASSERT(f(2, 0x80000000) == 0);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0);
+  ASSERT(f(0x80000000, 0x7fffffff) == 1);
+  ASSERT(f(0, 0x7fffffff) == 0);
+  ASSERT(f(0x7fffffff, 0xffffffff) == 0);
+  ASSERT(f(0xffffffff, 0x7fffffff) == 2);
+  ASSERT(f(0xffffffff, 0xffffffff) == 1);
+#if __WORDSIZE != 32
+  ASSERT(f(0x7fffffffffffffff, 1) == 0x7fffffffffffffff);
+  ASSERT(f(1, 0x7fffffffffffffff) == 0);
+  ASSERT(f(0x8000000000000000, 1) == 0x8000000000000000);
+  ASSERT(f(1, 0x8000000000000000) == 0);
+  ASSERT(f(0x7fffffffffffffff, 2) == 0x3fffffffffffffff);
+  ASSERT(f(2, 0x7fffffffffffffff) == 0);
+  ASSERT(f(0x8000000000000000, 2) == 0x4000000000000000);
+  ASSERT(f(2, 0x8000000000000000) == 0);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == 0);
+  ASSERT(f(0x8000000000000000, 0x7fffffffffffffff) == 1);
+  ASSERT(f(0x7fffffffffffffff, 0xffffffffffffffff) == 0);
+  ASSERT(f(0xffffffffffffffff, 0x7fffffffffffffff) == 2);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == 1);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}