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Improve dead code elimination

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This commit is contained in:
Justine Tunney 2021-02-08 04:04:42 -08:00
parent 760db8c5ad
commit 0e36cb3ac4
6606 changed files with 9685 additions and 9854 deletions
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27
test/tool/build/lib/machine_test.c
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@ -16,7 +16,6 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/progn.internal.h"
#include "libc/fmt/bing.internal.h"
#include "libc/math.h"
#include "libc/mem/mem.h"
@ -161,9 +160,14 @@ BENCH(machine, benchPrimeNumberPrograms) {
ASSERT_EQ(15, Read32(m->ax));
}
static void machine_benchFpu_fn(void) {
ExecuteUntilHalt(m);
FpuPop(m);
}
BENCH(machine, benchFpu) {
VirtualRecv(m, 0, kPi80, sizeof(kPi80));
EZBENCH2("pi80", m->ip = 0, PROGN(ExecuteUntilHalt(m), FpuPop(m)));
EZBENCH2("pi80", m->ip = 0, machine_benchFpu_fn());
}
BENCH(machine, benchLoadExec2) {
@ -266,13 +270,18 @@ BENCH(machine, benchLoadExec8) {
EZBENCH2("fchs", m->ip = 0, ExecuteInstruction(m));
}
static void machine_benchPushpop_fn(void) {
LoadInstruction(m);
ExecuteInstruction(m);
LoadInstruction(m);
ExecuteInstruction(m);
}
BENCH(machine, benchPushpop) {
uint8_t kPushpop[] = {0x50, 0x58};
Write64(m->ax, 0);
VirtualRecv(m, 0, kPushpop, sizeof(kPushpop));
EZBENCH2("pushpop", m->ip = 0,
PROGN(LoadInstruction(m), ExecuteInstruction(m), LoadInstruction(m),
ExecuteInstruction(m)));
EZBENCH2("pushpop", m->ip = 0, machine_benchPushpop_fn());
}
BENCH(machine, benchPause) {
@ -291,14 +300,18 @@ BENCH(machine, benchClc) {
EZBENCH2("clc", m->ip = 0, ExecuteInstruction(m));
}
static void machine_benchNop_fn(void) {
LoadInstruction(m);
ExecuteInstruction(m);
}
BENCH(machine, benchNop) {
uint8_t kNop[] = {0x90};
Write64(m->ax, 0);
VirtualRecv(m, 0, kNop, sizeof(kNop));
LoadInstruction(m);
EZBENCH2("nop", m->ip = 0, ExecuteInstruction(m));
EZBENCH2("nop w/ load", m->ip = 0,
PROGN(LoadInstruction(m), ExecuteInstruction(m)));
EZBENCH2("nop w/ load", m->ip = 0, machine_benchNop_fn());
}
TEST(x87, fprem1) {