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unaligned_load.c: Added more naive_strcpy tests

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Added tests for naive_strcpy using a variety of different regs, as execution time can depend on which register is being used.
This commit is contained in:
Alex Stewart 2015-09-19 20:03:22 -07:00
parent 4c89a0574b
commit a3d7732da8
1 changed files with 84 additions and 0 deletions
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84
examples/experiments/unaligned_load/unaligned_load.c
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@ -65,6 +65,84 @@ void test_naive_strcpy(const char *string)
;
}
void test_naive_strcpy_a0(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a0, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a0, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a0, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a0", "a8", "a9");
}
void test_naive_strcpy_a2(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a2, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a2, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a2, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a2", "a8", "a9");
}
void test_naive_strcpy_a3(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a3, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a3, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a3, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a3", "a8", "a9");
}
void test_naive_strcpy_a4(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a4, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a4, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a4, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a4", "a8", "a9");
}
void test_naive_strcpy_a5(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a5, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a5, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a5, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a5", "a8", "a9");
}
void test_naive_strcpy_a6(const char *string)
{
asm volatile (
" mov a8, %0 \n"
" mov a9, %1 \n"
"tns_loop%=: l8ui a6, a9, 0 \n"
" addi.n a9, a9, 1 \n"
" s8i a6, a8, 0 \n"
" addi.n a8, a8, 1 \n"
" bnez a6, tns_loop%=\n"
: : "r" (buf), "r" (string) : "a6", "a8", "a9");
}
void test_l16si(const char *string)
{
/* This follows most of the l16si path, but as the
@ -118,6 +196,12 @@ void test_string(const char *string, char *label, bool evict_cache)
run_test(string, test_memcpy_unaligned2, "memcpy - unaligned start&len", nullvalue, evict_cache);
run_test(string, test_strcpy, "strcpy", nullvalue, evict_cache);
run_test(string, test_naive_strcpy, "naive strcpy", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a0, "naive strcpy (a0)", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a2, "naive strcpy (a2)", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a3, "naive strcpy (a3)", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a4, "naive strcpy (a4)", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a5, "naive strcpy (a5)", nullvalue, evict_cache);
run_test(string, test_naive_strcpy_a6, "naive strcpy (a6)", nullvalue, evict_cache);
run_test(string, test_sprintf, "sprintf", nullvalue, evict_cache);
run_test(string, test_sprintf_arg, "sprintf format arg", nullvalue, evict_cache);
run_test(string, test_l16si, "load as l16si", nullvalue, evict_cache);