[Guile-commits] 65/86: Add add-and-branch-on-overflow tests

[Andy Wingo]

wingo pushed a commit to branch lightening
in repository guile.

commit 6dbad81afd90933d5fa63329b9222b0daf5963a1
Author: Andy Wingo <address@hidden>
Date:   Tue Mar 26 15:53:48 2019 +0100

    Add add-and-branch-on-overflow tests
---
 tests/boaddi.c   | 43 +++++++++++++++++++++++++++++++++++++++++++
 tests/boaddi_u.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 tests/boaddr.c   | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/boaddr_u.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/bxaddi.c   | 42 ++++++++++++++++++++++++++++++++++++++++++
 tests/bxaddi_u.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 tests/bxaddr.c   | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/bxaddr_u.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 376 insertions(+)

diff --git a/tests/boaddi.c b/tests/boaddi.c
new file mode 100644
index 0000000..717c4c1
--- /dev/null
+++ b/tests/boaddi.c
@@ -0,0 +1,43 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_t args[1];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 } };
+
+  jit_receive(j, 1, abi, args);
+  jit_load_args(j, 1, abi, args, regs);
+  jit_reloc_t r = jit_boaddi(j, JIT_R0, 1);
+  jit_retr(j, JIT_R0);
+  jit_patch_here(j, r);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(-1) == 0);
+  ASSERT(f(0) == 1);
+  ASSERT(f(1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0x7fffffff) == overflowed);
+  ASSERT(f(0x80000000) == 0x80000001);
+  ASSERT(f(0xffffffff) == 0);
+#else
+  ASSERT(f(0x7fffffffffffffff) == overflowed);
+  ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+  ASSERT(f(0xffffffffffffffff) == 0);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/boaddi_u.c b/tests/boaddi_u.c
new file mode 100644
index 0000000..66b261b
--- /dev/null
+++ b/tests/boaddi_u.c
@@ -0,0 +1,43 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_t args[1];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 } };
+
+  jit_receive(j, 1, abi, args);
+  jit_load_args(j, 1, abi, args, regs);
+  jit_reloc_t r = jit_boaddi_u(j, JIT_R0, 1);
+  jit_retr(j, JIT_R0);
+  jit_patch_here(j, r);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(-1) == overflowed);
+  ASSERT(f(0) == 1);
+  ASSERT(f(1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0x7fffffff) == 0x80000000);
+  ASSERT(f(0x80000000) == 0x80000001);
+  ASSERT(f(0xffffffff) == overflowed);
+#else
+  ASSERT(f(0x7fffffffffffffff) == 0x8000000000000000);
+  ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+  ASSERT(f(0xffffffffffffffff) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/boaddr.c b/tests/boaddr.c
new file mode 100644
index 0000000..95fb624
--- /dev/null
+++ b/tests/boaddr.c
@@ -0,0 +1,52 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_reloc_t r = jit_boaddr(j, JIT_R0, JIT_R1);
+  jit_retr(j, JIT_R0);
+  jit_patch_here(j, r);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(0, 0) == 0);
+  ASSERT(f(1, 1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0xffffffff, 0xffffffff) == -2);
+  ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
+  ASSERT(f(0x7fffffff, 1) == overflowed);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == overflowed);
+  ASSERT(f(0x7fffffff, 0x80000000) == -1);
+  ASSERT(f(0x80000000, 0x80000000) == overflowed);
+#else
+  ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == 0x100000000);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == -2);
+  ASSERT(f(0x7fffffffffffffff, 1) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1);
+  ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/boaddr_u.c b/tests/boaddr_u.c
new file mode 100644
index 0000000..b9b2b45
--- /dev/null
+++ b/tests/boaddr_u.c
@@ -0,0 +1,52 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_reloc_t r = jit_boaddr_u(j, JIT_R0, JIT_R1);
+  jit_retr(j, JIT_R0);
+  jit_patch_here(j, r);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(0, 0) == 0);
+  ASSERT(f(1, 1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0xffffffff, 0xffffffff) == overflowed);
+  ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffff + 0x7fffffff);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == overflowed);
+#else
+  ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == 0x100000000);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 1) == 0x8000000000000000);
+  ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == -2);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1);
+  ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/bxaddi.c b/tests/bxaddi.c
new file mode 100644
index 0000000..16d4055
--- /dev/null
+++ b/tests/bxaddi.c
@@ -0,0 +1,42 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_t args[1];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 } };
+
+  jit_receive(j, 1, abi, args);
+  jit_load_args(j, 1, abi, args, regs);
+  jit_reloc_t r = jit_bxaddi(j, JIT_R0, 1);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_patch_here(j, r);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(-1) == 0);
+  ASSERT(f(0) == 1);
+  ASSERT(f(1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0x7fffffff) == overflowed);
+  ASSERT(f(0x80000000) == 0x80000001);
+  ASSERT(f(0xffffffff) == 0);
+#else
+  ASSERT(f(0x7fffffffffffffff) == overflowed);
+  ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+  ASSERT(f(0xffffffffffffffff) == 0);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/bxaddi_u.c b/tests/bxaddi_u.c
new file mode 100644
index 0000000..6c32578
--- /dev/null
+++ b/tests/bxaddi_u.c
@@ -0,0 +1,42 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_t args[1];
+  const jit_anyreg_t regs[] = { { .gpr=JIT_R0 } };
+
+  jit_receive(j, 1, abi, args);
+  jit_load_args(j, 1, abi, args, regs);
+  jit_reloc_t r = jit_bxaddi_u(j, JIT_R0, 1);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_patch_here(j, r);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(-1) == overflowed);
+  ASSERT(f(0) == 1);
+  ASSERT(f(1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0x7fffffff) == 0x80000000);
+  ASSERT(f(0x80000000) == 0x80000001);
+  ASSERT(f(0xffffffff) == overflowed);
+#else
+  ASSERT(f(0x7fffffffffffffff) == 0x8000000000000000);
+  ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+  ASSERT(f(0xffffffffffffffff) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/bxaddr.c b/tests/bxaddr.c
new file mode 100644
index 0000000..a73a0d8
--- /dev/null
+++ b/tests/bxaddr.c
@@ -0,0 +1,51 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_reloc_t r = jit_bxaddr(j, JIT_R0, JIT_R1);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_patch_here(j, r);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(0, 0) == 0);
+  ASSERT(f(1, 1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0xffffffff, 0xffffffff) == -2);
+  ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
+  ASSERT(f(0x7fffffff, 1) == overflowed);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == overflowed);
+  ASSERT(f(0x7fffffff, 0x80000000) == -1);
+  ASSERT(f(0x80000000, 0x80000000) == overflowed);
+#else
+  ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == 0x100000000);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == -2);
+  ASSERT(f(0x7fffffffffffffff, 1) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1);
+  ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}
diff --git a/tests/bxaddr_u.c b/tests/bxaddr_u.c
new file mode 100644
index 0000000..ba54c03
--- /dev/null
+++ b/tests/bxaddr_u.c
@@ -0,0 +1,51 @@
+#include "test.h"
+
+static const intmax_t overflowed = 0xcabba9e5;
+
+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_reloc_t r = jit_bxaddr_u(j, JIT_R0, JIT_R1);
+  jit_movi(j, JIT_R0, overflowed);
+  jit_patch_here(j, r);
+  jit_retr(j, JIT_R0);
+
+  intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
+
+  ASSERT(f(0, 0) == 0);
+  ASSERT(f(1, 1) == 2);
+
+#if __WORDSIZE == 32
+  ASSERT(f(0xffffffff, 0xffffffff) == overflowed);
+  ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffff + 0x7fffffff);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == overflowed);
+#else
+  ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull);
+  ASSERT(f(0x7fffffff, 1) == 0x80000000);
+  ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull);
+  ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
+  ASSERT(f(0x80000000, 0x80000000) == 0x100000000);
+  ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == overflowed);
+  ASSERT(f(0x7fffffffffffffff, 1) == 0x8000000000000000);
+  ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == -2);
+  ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1);
+  ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}