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luau/tests/AssemblyBuilderX64.test.cpp
Arseny Kapoulkine e6bf71871a
CodeGen: Rewrite dot product lowering using a dedicated IR instruction (#1512) 
Instead of doing the dot product related math in scalar IR, we lift the
computation into a dedicated IR instruction.

On x64, we can use VDPPS which was more or less tailor made for this
purpose. This is better than manual scalar lowering that requires
reloading components from memory; it's not always a strict improvement
over the shuffle+add version (which we never had), but this can now be
adjusted in the IR lowering in an optimal fashion (maybe even based on
CPU vendor, although that'd create issues for offline compilation).

On A64, we can either use naive adds or paired adds, as there is no
dedicated vector-wide horizontal instruction until SVE. Both run at
about the same performance on M2, but paired adds require fewer
instructions and temporaries.

I've measured this using mesh-normal-vector benchmark, changing the
benchmark to just report the time of the second loop inside
`calculate_normals`, testing master vs #1504 vs this PR, also increasing
the grid size to 400 for more stable timings.

On Zen 4 (7950X), this PR is comfortably ~8% faster vs master, while I
see neutral to negative results in #1504.
On M2 (base), this PR is ~28% faster vs master, while #1504 is only
about ~10% faster.

If I measure the second loop in `calculate_tangent_space` instead, I
get:

On Zen 4 (7950X), this PR is ~12% faster vs master, while #1504 is ~3%
faster
On M2 (base), this PR is ~24% faster vs master, while #1504 is only
about ~13% faster.

Note that the loops in question are not quite optimal, as they store and
reload various vectors to dictionary values due to inappropriate use of
locals. The underlying gains in individual functions are thus larger
than the numbers above; for example, changing the `calculate_normals`
loop to use a local variable to store the normalized vector (but still
saving the result to dictionary value), I get a ~24% performance
increase from this PR on Zen4 vs master instead of just 8% (#1504 is
~15% slower in this setup).
2024-11-08 16:23:09 -08:00

804 lines
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// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "Luau/AssemblyBuilderX64.h"
#include "Luau/StringUtils.h"
#include "doctest.h"
#include "ScopedFlags.h"
#include <string.h>
using namespace Luau::CodeGen;
using namespace Luau::CodeGen::X64;
static std::string bytecodeAsArray(const std::vector<uint8_t>& bytecode)
{
std::string result = "{";
for (size_t i = 0; i < bytecode.size(); i++)
Luau::formatAppend(result, "%s0x%02x", i == 0 ? "" : ", ", bytecode[i]);
return result.append("}");
}
class AssemblyBuilderX64Fixture
{
public:
bool check(void (*f)(AssemblyBuilderX64& build), std::vector<uint8_t> code, std::vector<uint8_t> data = {})
{
AssemblyBuilderX64 build(/* logText= */ false);
f(build);
build.finalize();
if (build.code != code)
{
printf("Expected code: %s\nReceived code: %s\n", bytecodeAsArray(code).c_str(), bytecodeAsArray(build.code).c_str());
return false;
}
if (build.data != data)
{
printf("Expected data: %s\nReceived data: %s\n", bytecodeAsArray(data).c_str(), bytecodeAsArray(build.data).c_str());
return false;
}
return true;
}
};
TEST_SUITE_BEGIN("x64Assembly");
#define SINGLE_COMPARE(inst, ...) \
CHECK(check( \
[](AssemblyBuilderX64& build) \
{ \
build.inst; \
}, \
{__VA_ARGS__} \
))
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "BaseBinaryInstructionForms")
{
// reg, reg
SINGLE_COMPARE(add(rax, rcx), 0x48, 0x03, 0xc1);
SINGLE_COMPARE(add(rsp, r12), 0x49, 0x03, 0xe4);
SINGLE_COMPARE(add(r14, r10), 0x4d, 0x03, 0xf2);
// reg, imm
SINGLE_COMPARE(add(rax, 0), 0x48, 0x83, 0xc0, 0x00);
SINGLE_COMPARE(add(rax, 0x7f), 0x48, 0x83, 0xc0, 0x7f);
SINGLE_COMPARE(add(rax, 0x80), 0x48, 0x81, 0xc0, 0x80, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r10, 0x7fffffff), 0x49, 0x81, 0xc2, 0xff, 0xff, 0xff, 0x7f);
SINGLE_COMPARE(add(al, 3), 0x80, 0xc0, 0x03);
SINGLE_COMPARE(add(sil, 3), 0x48, 0x80, 0xc6, 0x03);
SINGLE_COMPARE(add(r11b, 3), 0x49, 0x80, 0xc3, 0x03);
// reg, [reg]
SINGLE_COMPARE(add(rax, qword[rax]), 0x48, 0x03, 0x00);
SINGLE_COMPARE(add(rax, qword[rbx]), 0x48, 0x03, 0x03);
SINGLE_COMPARE(add(rax, qword[rsp]), 0x48, 0x03, 0x04, 0x24);
SINGLE_COMPARE(add(rax, qword[rbp]), 0x48, 0x03, 0x45, 0x00);
SINGLE_COMPARE(add(rax, qword[r10]), 0x49, 0x03, 0x02);
SINGLE_COMPARE(add(rax, qword[r12]), 0x49, 0x03, 0x04, 0x24);
SINGLE_COMPARE(add(rax, qword[r13]), 0x49, 0x03, 0x45, 0x00);
SINGLE_COMPARE(add(r12, qword[rax]), 0x4c, 0x03, 0x20);
SINGLE_COMPARE(add(r12, qword[rbx]), 0x4c, 0x03, 0x23);
SINGLE_COMPARE(add(r12, qword[rsp]), 0x4c, 0x03, 0x24, 0x24);
SINGLE_COMPARE(add(r12, qword[rbp]), 0x4c, 0x03, 0x65, 0x00);
SINGLE_COMPARE(add(r12, qword[r10]), 0x4d, 0x03, 0x22);
SINGLE_COMPARE(add(r12, qword[r12]), 0x4d, 0x03, 0x24, 0x24);
SINGLE_COMPARE(add(r12, qword[r13]), 0x4d, 0x03, 0x65, 0x00);
// reg, [base+imm8]
SINGLE_COMPARE(add(rax, qword[rax + 0x1b]), 0x48, 0x03, 0x40, 0x1b);
SINGLE_COMPARE(add(rax, qword[rbx + 0x1b]), 0x48, 0x03, 0x43, 0x1b);
SINGLE_COMPARE(add(rax, qword[rsp + 0x1b]), 0x48, 0x03, 0x44, 0x24, 0x1b);
SINGLE_COMPARE(add(rax, qword[rbp + 0x1b]), 0x48, 0x03, 0x45, 0x1b);
SINGLE_COMPARE(add(rax, qword[r10 + 0x1b]), 0x49, 0x03, 0x42, 0x1b);
SINGLE_COMPARE(add(rax, qword[r12 + 0x1b]), 0x49, 0x03, 0x44, 0x24, 0x1b);
SINGLE_COMPARE(add(rax, qword[r13 + 0x1b]), 0x49, 0x03, 0x45, 0x1b);
SINGLE_COMPARE(add(r12, qword[rax + 0x1b]), 0x4c, 0x03, 0x60, 0x1b);
SINGLE_COMPARE(add(r12, qword[rbx + 0x1b]), 0x4c, 0x03, 0x63, 0x1b);
SINGLE_COMPARE(add(r12, qword[rsp + 0x1b]), 0x4c, 0x03, 0x64, 0x24, 0x1b);
SINGLE_COMPARE(add(r12, qword[rbp + 0x1b]), 0x4c, 0x03, 0x65, 0x1b);
SINGLE_COMPARE(add(r12, qword[r10 + 0x1b]), 0x4d, 0x03, 0x62, 0x1b);
SINGLE_COMPARE(add(r12, qword[r12 + 0x1b]), 0x4d, 0x03, 0x64, 0x24, 0x1b);
SINGLE_COMPARE(add(r12, qword[r13 + 0x1b]), 0x4d, 0x03, 0x65, 0x1b);
// reg, [base+imm32]
SINGLE_COMPARE(add(rax, qword[rax + 0xabab]), 0x48, 0x03, 0x80, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rbx + 0xabab]), 0x48, 0x03, 0x83, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rsp + 0xabab]), 0x48, 0x03, 0x84, 0x24, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rbp + 0xabab]), 0x48, 0x03, 0x85, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r10 + 0xabab]), 0x49, 0x03, 0x82, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r12 + 0xabab]), 0x49, 0x03, 0x84, 0x24, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r13 + 0xabab]), 0x49, 0x03, 0x85, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rax + 0xabab]), 0x4c, 0x03, 0xa0, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rbx + 0xabab]), 0x4c, 0x03, 0xa3, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rsp + 0xabab]), 0x4c, 0x03, 0xa4, 0x24, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rbp + 0xabab]), 0x4c, 0x03, 0xa5, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r10 + 0xabab]), 0x4d, 0x03, 0xa2, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r12 + 0xabab]), 0x4d, 0x03, 0xa4, 0x24, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r13 + 0xabab]), 0x4d, 0x03, 0xa5, 0xab, 0xab, 0x00, 0x00);
// reg, [index*scale]
SINGLE_COMPARE(add(rax, qword[rax * 2]), 0x48, 0x03, 0x04, 0x45, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rbx * 2]), 0x48, 0x03, 0x04, 0x5d, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rbp * 2]), 0x48, 0x03, 0x04, 0x6d, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r10 * 2]), 0x4a, 0x03, 0x04, 0x55, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r12 * 2]), 0x4a, 0x03, 0x04, 0x65, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[r13 * 2]), 0x4a, 0x03, 0x04, 0x6d, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rax * 2]), 0x4c, 0x03, 0x24, 0x45, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rbx * 2]), 0x4c, 0x03, 0x24, 0x5d, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rbp * 2]), 0x4c, 0x03, 0x24, 0x6d, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r10 * 2]), 0x4e, 0x03, 0x24, 0x55, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r12 * 2]), 0x4e, 0x03, 0x24, 0x65, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[r13 * 2]), 0x4e, 0x03, 0x24, 0x6d, 0x00, 0x00, 0x00, 0x00);
// reg, [base+index*scale+imm]
SINGLE_COMPARE(add(rax, qword[rax + rax * 2]), 0x48, 0x03, 0x04, 0x40);
SINGLE_COMPARE(add(rax, qword[rax + rbx * 2 + 0x1b]), 0x48, 0x03, 0x44, 0x58, 0x1b);
SINGLE_COMPARE(add(rax, qword[rax + rbp * 2]), 0x48, 0x03, 0x04, 0x68);
SINGLE_COMPARE(add(rax, qword[rax + rbp + 0xabab]), 0x48, 0x03, 0x84, 0x28, 0xAB, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rax + r12 + 0x1b]), 0x4a, 0x03, 0x44, 0x20, 0x1b);
SINGLE_COMPARE(add(rax, qword[rax + r12 * 4 + 0xabab]), 0x4a, 0x03, 0x84, 0xa0, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[rax + r13 * 2 + 0x1b]), 0x4a, 0x03, 0x44, 0x68, 0x1b);
SINGLE_COMPARE(add(rax, qword[rax + r13 + 0xabab]), 0x4a, 0x03, 0x84, 0x28, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rax + r12 * 2]), 0x4e, 0x03, 0x24, 0x60);
SINGLE_COMPARE(add(r12, qword[rax + r13 + 0xabab]), 0x4e, 0x03, 0xA4, 0x28, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(r12, qword[rax + rbp * 2 + 0x1b]), 0x4c, 0x03, 0x64, 0x68, 0x1b);
// reg, [imm32]
SINGLE_COMPARE(add(rax, qword[0]), 0x48, 0x03, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(add(rax, qword[0xabab]), 0x48, 0x03, 0x04, 0x25, 0xab, 0xab, 0x00, 0x00);
// [addr], reg
SINGLE_COMPARE(add(qword[rax], rax), 0x48, 0x01, 0x00);
SINGLE_COMPARE(add(qword[rax + rax * 4 + 0xabab], rax), 0x48, 0x01, 0x84, 0x80, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(qword[rbx + rax * 2 + 0x1b], rax), 0x48, 0x01, 0x44, 0x43, 0x1b);
SINGLE_COMPARE(add(qword[rbx + rbp * 2 + 0x1b], rax), 0x48, 0x01, 0x44, 0x6b, 0x1b);
SINGLE_COMPARE(add(qword[rbp + rbp * 4 + 0xabab], rax), 0x48, 0x01, 0x84, 0xad, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(qword[rbp + r12 + 0x1b], rax), 0x4a, 0x01, 0x44, 0x25, 0x1b);
SINGLE_COMPARE(add(qword[r12], rax), 0x49, 0x01, 0x04, 0x24);
SINGLE_COMPARE(add(qword[r13 + rbx + 0xabab], rax), 0x49, 0x01, 0x84, 0x1d, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(qword[rax + r13 * 2 + 0x1b], rsi), 0x4a, 0x01, 0x74, 0x68, 0x1b);
SINGLE_COMPARE(add(qword[rbp + rbx * 2], rsi), 0x48, 0x01, 0x74, 0x5d, 0x00);
SINGLE_COMPARE(add(qword[rsp + r10 * 2 + 0x1b], r10), 0x4e, 0x01, 0x54, 0x54, 0x1b);
// [addr], imm
SINGLE_COMPARE(add(byte[rax], 2), 0x80, 0x00, 0x02);
SINGLE_COMPARE(add(dword[rax], 2), 0x83, 0x00, 0x02);
SINGLE_COMPARE(add(dword[rax], 0xabcd), 0x81, 0x00, 0xcd, 0xab, 0x00, 0x00);
SINGLE_COMPARE(add(qword[rax], 2), 0x48, 0x83, 0x00, 0x02);
SINGLE_COMPARE(add(qword[rax], 0xabcd), 0x48, 0x81, 0x00, 0xcd, 0xab, 0x00, 0x00);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "BaseUnaryInstructionForms")
{
SINGLE_COMPARE(div(rcx), 0x48, 0xf7, 0xf1);
SINGLE_COMPARE(idiv(qword[rax]), 0x48, 0xf7, 0x38);
SINGLE_COMPARE(mul(qword[rax + rbx]), 0x48, 0xf7, 0x24, 0x18);
SINGLE_COMPARE(imul(r9), 0x49, 0xf7, 0xe9);
SINGLE_COMPARE(neg(r9), 0x49, 0xf7, 0xd9);
SINGLE_COMPARE(not_(r12), 0x49, 0xf7, 0xd4);
SINGLE_COMPARE(inc(r12), 0x49, 0xff, 0xc4);
SINGLE_COMPARE(dec(ecx), 0xff, 0xc9);
SINGLE_COMPARE(dec(byte[rdx]), 0xfe, 0x0a);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfMov")
{
SINGLE_COMPARE(mov(rcx, 1), 0x48, 0xb9, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(mov64(rcx, 0x1234567812345678ll), 0x48, 0xb9, 0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
SINGLE_COMPARE(mov(ecx, 2), 0xb9, 0x02, 0x00, 0x00, 0x00);
SINGLE_COMPARE(mov(cl, 2), 0xb1, 0x02);
SINGLE_COMPARE(mov(sil, 2), 0x48, 0xb6, 0x02);
SINGLE_COMPARE(mov(r9b, 2), 0x49, 0xb1, 0x02);
SINGLE_COMPARE(mov(rcx, qword[rdi]), 0x48, 0x8b, 0x0f);
SINGLE_COMPARE(mov(dword[rax], 0xabcd), 0xc7, 0x00, 0xcd, 0xab, 0x00, 0x00);
SINGLE_COMPARE(mov(r13, 1), 0x49, 0xbd, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(mov64(r13, 0x1234567812345678ll), 0x49, 0xbd, 0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
SINGLE_COMPARE(mov(r13d, 2), 0x41, 0xbd, 0x02, 0x00, 0x00, 0x00);
SINGLE_COMPARE(mov(r13, qword[r12]), 0x4d, 0x8b, 0x2c, 0x24);
SINGLE_COMPARE(mov(dword[r13], 0xabcd), 0x41, 0xc7, 0x45, 0x00, 0xcd, 0xab, 0x00, 0x00);
SINGLE_COMPARE(mov(qword[rdx], r9), 0x4c, 0x89, 0x0a);
SINGLE_COMPARE(mov(byte[rsi], 0x3), 0xc6, 0x06, 0x03);
SINGLE_COMPARE(mov(byte[rsi], al), 0x88, 0x06);
SINGLE_COMPARE(mov(byte[rsi], dil), 0x48, 0x88, 0x3e);
SINGLE_COMPARE(mov(byte[rsi], r10b), 0x4c, 0x88, 0x16);
SINGLE_COMPARE(mov(wordReg(ebx), 0x3a3d), 0x66, 0xbb, 0x3d, 0x3a);
SINGLE_COMPARE(mov(word[rsi], 0x3a3d), 0x66, 0xc7, 0x06, 0x3d, 0x3a);
SINGLE_COMPARE(mov(word[rsi], wordReg(eax)), 0x66, 0x89, 0x06);
SINGLE_COMPARE(mov(word[rsi], wordReg(edi)), 0x66, 0x89, 0x3e);
SINGLE_COMPARE(mov(word[rsi], wordReg(r10)), 0x66, 0x44, 0x89, 0x16);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfMovExtended")
{
SINGLE_COMPARE(movsx(eax, byte[rcx]), 0x0f, 0xbe, 0x01);
SINGLE_COMPARE(movsx(r12, byte[r10]), 0x4d, 0x0f, 0xbe, 0x22);
SINGLE_COMPARE(movsx(ebx, word[r11]), 0x41, 0x0f, 0xbf, 0x1b);
SINGLE_COMPARE(movsx(rdx, word[rcx]), 0x48, 0x0f, 0xbf, 0x11);
SINGLE_COMPARE(movzx(eax, byte[rcx]), 0x0f, 0xb6, 0x01);
SINGLE_COMPARE(movzx(r12, byte[r10]), 0x4d, 0x0f, 0xb6, 0x22);
SINGLE_COMPARE(movzx(ebx, word[r11]), 0x41, 0x0f, 0xb7, 0x1b);
SINGLE_COMPARE(movzx(rdx, word[rcx]), 0x48, 0x0f, 0xb7, 0x11);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfTest")
{
SINGLE_COMPARE(test(al, 8), 0xf6, 0xc0, 0x08);
SINGLE_COMPARE(test(eax, 8), 0xf7, 0xc0, 0x08, 0x00, 0x00, 0x00);
SINGLE_COMPARE(test(rax, 8), 0x48, 0xf7, 0xc0, 0x08, 0x00, 0x00, 0x00);
SINGLE_COMPARE(test(rcx, 0xabab), 0x48, 0xf7, 0xc1, 0xab, 0xab, 0x00, 0x00);
SINGLE_COMPARE(test(rcx, rax), 0x48, 0x85, 0xc8);
SINGLE_COMPARE(test(rax, qword[rcx]), 0x48, 0x85, 0x01);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfShift")
{
SINGLE_COMPARE(shl(al, 1), 0xd0, 0xe0);
SINGLE_COMPARE(shl(al, cl), 0xd2, 0xe0);
SINGLE_COMPARE(shl(sil, cl), 0x48, 0xd2, 0xe6);
SINGLE_COMPARE(shl(r10b, cl), 0x49, 0xd2, 0xe2);
SINGLE_COMPARE(shr(al, 4), 0xc0, 0xe8, 0x04);
SINGLE_COMPARE(shr(eax, 1), 0xd1, 0xe8);
SINGLE_COMPARE(sal(eax, cl), 0xd3, 0xe0);
SINGLE_COMPARE(sal(eax, 4), 0xc1, 0xe0, 0x04);
SINGLE_COMPARE(sar(rax, 4), 0x48, 0xc1, 0xf8, 0x04);
SINGLE_COMPARE(sar(r11, 1), 0x49, 0xd1, 0xfb);
SINGLE_COMPARE(rol(eax, 1), 0xd1, 0xc0);
SINGLE_COMPARE(rol(eax, cl), 0xd3, 0xc0);
SINGLE_COMPARE(ror(eax, 1), 0xd1, 0xc8);
SINGLE_COMPARE(ror(eax, cl), 0xd3, 0xc8);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfLea")
{
SINGLE_COMPARE(lea(rax, addr[rdx + rcx]), 0x48, 0x8d, 0x04, 0x0a);
SINGLE_COMPARE(lea(rax, addr[rdx + rax * 4]), 0x48, 0x8d, 0x04, 0x82);
SINGLE_COMPARE(lea(rax, addr[r13 + r12 * 4 + 4]), 0x4b, 0x8d, 0x44, 0xa5, 0x04);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfSetcc")
{
SINGLE_COMPARE(setcc(ConditionX64::NotEqual, bl), 0x0f, 0x95, 0xc3);
SINGLE_COMPARE(setcc(ConditionX64::NotEqual, dil), 0x48, 0x0f, 0x95, 0xc7);
SINGLE_COMPARE(setcc(ConditionX64::BelowEqual, byte[rcx]), 0x0f, 0x96, 0x01);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfCmov")
{
SINGLE_COMPARE(cmov(ConditionX64::LessEqual, ebx, eax), 0x0f, 0x4e, 0xd8);
SINGLE_COMPARE(cmov(ConditionX64::NotZero, rbx, qword[rax]), 0x48, 0x0f, 0x45, 0x18);
SINGLE_COMPARE(cmov(ConditionX64::Zero, rbx, qword[rax + rcx]), 0x48, 0x0f, 0x44, 0x1c, 0x08);
SINGLE_COMPARE(cmov(ConditionX64::BelowEqual, r14d, r15d), 0x45, 0x0f, 0x46, 0xf7);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfAbsoluteJumps")
{
SINGLE_COMPARE(jmp(rax), 0xff, 0xe0);
SINGLE_COMPARE(jmp(r14), 0x41, 0xff, 0xe6);
SINGLE_COMPARE(jmp(qword[r14 + rdx * 4]), 0x41, 0xff, 0x24, 0x96);
SINGLE_COMPARE(call(rax), 0xff, 0xd0);
SINGLE_COMPARE(call(r14), 0x41, 0xff, 0xd6);
SINGLE_COMPARE(call(qword[r14 + rdx * 4]), 0x41, 0xff, 0x14, 0x96);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "FormsOfImul")
{
SINGLE_COMPARE(imul(ecx, esi), 0x0f, 0xaf, 0xce);
SINGLE_COMPARE(imul(r12, rax), 0x4c, 0x0f, 0xaf, 0xe0);
SINGLE_COMPARE(imul(r12, qword[rdx + rdi]), 0x4c, 0x0f, 0xaf, 0x24, 0x3a);
SINGLE_COMPARE(imul(ecx, edx, 8), 0x6b, 0xca, 0x08);
SINGLE_COMPARE(imul(ecx, r9d, 0xabcd), 0x41, 0x69, 0xc9, 0xcd, 0xab, 0x00, 0x00);
SINGLE_COMPARE(imul(r8d, eax, -9), 0x44, 0x6b, 0xc0, 0xf7);
SINGLE_COMPARE(imul(rcx, rdx, 17), 0x48, 0x6b, 0xca, 0x11);
SINGLE_COMPARE(imul(rcx, r12, 0xabcd), 0x49, 0x69, 0xcc, 0xcd, 0xab, 0x00, 0x00);
SINGLE_COMPARE(imul(r12, rax, -13), 0x4c, 0x6b, 0xe0, 0xf3);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "NopForms")
{
SINGLE_COMPARE(nop(), 0x90);
SINGLE_COMPARE(nop(2), 0x66, 0x90);
SINGLE_COMPARE(nop(3), 0x0f, 0x1f, 0x00);
SINGLE_COMPARE(nop(4), 0x0f, 0x1f, 0x40, 0x00);
SINGLE_COMPARE(nop(5), 0x0f, 0x1f, 0x44, 0x00, 0x00);
SINGLE_COMPARE(nop(6), 0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00);
SINGLE_COMPARE(nop(7), 0x0f, 0x1f, 0x80, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(nop(8), 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(nop(9), 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00);
SINGLE_COMPARE(nop(15), 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00); // 9+6
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AlignmentForms")
{
CHECK(check(
[](AssemblyBuilderX64& build)
{
build.ret();
build.align(8, AlignmentDataX64::Nop);
},
{0xc3, 0x0f, 0x1f, 0x80, 0x00, 0x00, 0x00, 0x00}
));
CHECK(check(
[](AssemblyBuilderX64& build)
{
build.ret();
build.align(32, AlignmentDataX64::Nop);
},
{0xc3, 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00,
0x00, 0x00, 0x00, 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x1f, 0x40, 0x00}
));
CHECK(check(
[](AssemblyBuilderX64& build)
{
build.ret();
build.align(8, AlignmentDataX64::Int3);
},
{0xc3, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc}
));
CHECK(check(
[](AssemblyBuilderX64& build)
{
build.ret();
build.align(8, AlignmentDataX64::Ud2);
},
{0xc3, 0x0f, 0x0b, 0x0f, 0x0b, 0x0f, 0x0b, 0xcc}
));
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AlignmentOverflow")
{
// Test that alignment correctly resizes the code buffer
{
AssemblyBuilderX64 build(/* logText */ false);
build.ret();
build.align(8192, AlignmentDataX64::Nop);
build.finalize();
}
{
AssemblyBuilderX64 build(/* logText */ false);
build.ret();
build.align(8192, AlignmentDataX64::Int3);
build.finalize();
}
{
AssemblyBuilderX64 build(/* logText */ false);
for (int i = 0; i < 8192; i++)
build.int3();
build.finalize();
}
{
AssemblyBuilderX64 build(/* logText */ false);
build.ret();
build.align(8192, AlignmentDataX64::Ud2);
build.finalize();
}
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "ControlFlow")
{
// Jump back
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label start = build.setLabel();
build.add(rsi, 1);
build.cmp(rsi, rdi);
build.jcc(ConditionX64::Equal, start);
},
{0x48, 0x83, 0xc6, 0x01, 0x48, 0x3b, 0xf7, 0x0f, 0x84, 0xf3, 0xff, 0xff, 0xff}
));
// Jump back, but the label is set before use
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label start;
build.add(rsi, 1);
build.setLabel(start);
build.cmp(rsi, rdi);
build.jcc(ConditionX64::Equal, start);
},
{0x48, 0x83, 0xc6, 0x01, 0x48, 0x3b, 0xf7, 0x0f, 0x84, 0xf7, 0xff, 0xff, 0xff}
));
// Jump forward
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label skip;
build.cmp(rsi, rdi);
build.jcc(ConditionX64::Greater, skip);
build.or_(rdi, 0x3e);
build.setLabel(skip);
},
{0x48, 0x3b, 0xf7, 0x0f, 0x8f, 0x04, 0x00, 0x00, 0x00, 0x48, 0x83, 0xcf, 0x3e}
));
// Regular jump
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label skip;
build.jmp(skip);
build.and_(rdi, 0x3e);
build.setLabel(skip);
},
{0xe9, 0x04, 0x00, 0x00, 0x00, 0x48, 0x83, 0xe7, 0x3e}
));
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "LabelCall")
{
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label fnB;
build.and_(rcx, 0x3e);
build.call(fnB);
build.ret();
build.setLabel(fnB);
build.lea(rax, addr[rcx + 0x1f]);
build.ret();
},
{0x48, 0x83, 0xe1, 0x3e, 0xe8, 0x01, 0x00, 0x00, 0x00, 0xc3, 0x48, 0x8d, 0x41, 0x1f, 0xc3}
));
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AVXBinaryInstructionForms")
{
SINGLE_COMPARE(vaddpd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x29, 0x58, 0xc6);
SINGLE_COMPARE(vaddpd(xmm8, xmm10, xmmword[r9]), 0xc4, 0x41, 0x29, 0x58, 0x01);
SINGLE_COMPARE(vaddpd(ymm8, ymm10, ymm14), 0xc4, 0x41, 0x2d, 0x58, 0xc6);
SINGLE_COMPARE(vaddpd(ymm8, ymm10, ymmword[r9]), 0xc4, 0x41, 0x2d, 0x58, 0x01);
SINGLE_COMPARE(vaddps(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x28, 0x58, 0xc6);
SINGLE_COMPARE(vaddps(xmm8, xmm10, xmmword[r9]), 0xc4, 0x41, 0x28, 0x58, 0x01);
SINGLE_COMPARE(vaddsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x58, 0xc6);
SINGLE_COMPARE(vaddsd(xmm8, xmm10, qword[r9]), 0xc4, 0x41, 0x2b, 0x58, 0x01);
SINGLE_COMPARE(vaddss(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2a, 0x58, 0xc6);
SINGLE_COMPARE(vaddss(xmm8, xmm10, dword[r9]), 0xc4, 0x41, 0x2a, 0x58, 0x01);
SINGLE_COMPARE(vaddps(xmm1, xmm2, xmm3), 0xc4, 0xe1, 0x68, 0x58, 0xcb);
SINGLE_COMPARE(vaddps(xmm9, xmm12, xmmword[r9 + r14 * 2 + 0x1c]), 0xc4, 0x01, 0x18, 0x58, 0x4c, 0x71, 0x1c);
SINGLE_COMPARE(vaddps(ymm1, ymm2, ymm3), 0xc4, 0xe1, 0x6c, 0x58, 0xcb);
SINGLE_COMPARE(vaddps(ymm9, ymm12, ymmword[r9 + r14 * 2 + 0x1c]), 0xc4, 0x01, 0x1c, 0x58, 0x4c, 0x71, 0x1c);
// Coverage for other instructions that follow the same pattern
SINGLE_COMPARE(vsubsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x5c, 0xc6);
SINGLE_COMPARE(vmulsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x59, 0xc6);
SINGLE_COMPARE(vdivsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x5e, 0xc6);
SINGLE_COMPARE(vsubps(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x28, 0x5c, 0xc6);
SINGLE_COMPARE(vmulps(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x28, 0x59, 0xc6);
SINGLE_COMPARE(vdivps(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x28, 0x5e, 0xc6);
SINGLE_COMPARE(vorpd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x29, 0x56, 0xc6);
SINGLE_COMPARE(vxorpd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x29, 0x57, 0xc6);
SINGLE_COMPARE(vorps(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x28, 0x56, 0xc6);
SINGLE_COMPARE(vandpd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x29, 0x54, 0xc6);
SINGLE_COMPARE(vandnpd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x29, 0x55, 0xc6);
SINGLE_COMPARE(vmaxsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x5f, 0xc6);
SINGLE_COMPARE(vminsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x5d, 0xc6);
SINGLE_COMPARE(vcmpltsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0xc2, 0xc6, 0x01);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AVXUnaryMergeInstructionForms")
{
SINGLE_COMPARE(vsqrtpd(xmm8, xmm10), 0xc4, 0x41, 0x79, 0x51, 0xc2);
SINGLE_COMPARE(vsqrtpd(xmm8, xmmword[r9]), 0xc4, 0x41, 0x79, 0x51, 0x01);
SINGLE_COMPARE(vsqrtpd(ymm8, ymm10), 0xc4, 0x41, 0x7d, 0x51, 0xc2);
SINGLE_COMPARE(vsqrtpd(ymm8, ymmword[r9]), 0xc4, 0x41, 0x7d, 0x51, 0x01);
SINGLE_COMPARE(vsqrtps(xmm8, xmm10), 0xc4, 0x41, 0x78, 0x51, 0xc2);
SINGLE_COMPARE(vsqrtps(xmm8, xmmword[r9]), 0xc4, 0x41, 0x78, 0x51, 0x01);
SINGLE_COMPARE(vsqrtsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x51, 0xc6);
SINGLE_COMPARE(vsqrtsd(xmm8, xmm10, qword[r9]), 0xc4, 0x41, 0x2b, 0x51, 0x01);
SINGLE_COMPARE(vsqrtss(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2a, 0x51, 0xc6);
SINGLE_COMPARE(vsqrtss(xmm8, xmm10, dword[r9]), 0xc4, 0x41, 0x2a, 0x51, 0x01);
// Coverage for other instructions that follow the same pattern
SINGLE_COMPARE(vucomisd(xmm1, xmm4), 0xc4, 0xe1, 0x79, 0x2e, 0xcc);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AVXMoveInstructionForms")
{
SINGLE_COMPARE(vmovsd(qword[r9], xmm10), 0xc4, 0x41, 0x7b, 0x11, 0x11);
SINGLE_COMPARE(vmovsd(xmm8, qword[r9]), 0xc4, 0x41, 0x7b, 0x10, 0x01);
SINGLE_COMPARE(vmovsd(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2b, 0x10, 0xc6);
SINGLE_COMPARE(vmovss(dword[r9], xmm10), 0xc4, 0x41, 0x7a, 0x11, 0x11);
SINGLE_COMPARE(vmovss(xmm8, dword[r9]), 0xc4, 0x41, 0x7a, 0x10, 0x01);
SINGLE_COMPARE(vmovss(xmm8, xmm10, xmm14), 0xc4, 0x41, 0x2a, 0x10, 0xc6);
SINGLE_COMPARE(vmovapd(xmm8, xmmword[r9]), 0xc4, 0x41, 0x79, 0x28, 0x01);
SINGLE_COMPARE(vmovapd(xmmword[r9], xmm10), 0xc4, 0x41, 0x79, 0x29, 0x11);
SINGLE_COMPARE(vmovapd(ymm8, ymmword[r9]), 0xc4, 0x41, 0x7d, 0x28, 0x01);
SINGLE_COMPARE(vmovaps(xmm8, xmmword[r9]), 0xc4, 0x41, 0x78, 0x28, 0x01);
SINGLE_COMPARE(vmovaps(xmmword[r9], xmm10), 0xc4, 0x41, 0x78, 0x29, 0x11);
SINGLE_COMPARE(vmovaps(ymm8, ymmword[r9]), 0xc4, 0x41, 0x7c, 0x28, 0x01);
SINGLE_COMPARE(vmovupd(xmm8, xmmword[r9]), 0xc4, 0x41, 0x79, 0x10, 0x01);
SINGLE_COMPARE(vmovupd(xmmword[r9], xmm10), 0xc4, 0x41, 0x79, 0x11, 0x11);
SINGLE_COMPARE(vmovupd(ymm8, ymmword[r9]), 0xc4, 0x41, 0x7d, 0x10, 0x01);
SINGLE_COMPARE(vmovups(xmm8, xmmword[r9]), 0xc4, 0x41, 0x78, 0x10, 0x01);
SINGLE_COMPARE(vmovups(xmmword[r9], xmm10), 0xc4, 0x41, 0x78, 0x11, 0x11);
SINGLE_COMPARE(vmovups(ymm8, ymmword[r9]), 0xc4, 0x41, 0x7c, 0x10, 0x01);
SINGLE_COMPARE(vmovq(xmm1, rbx), 0xc4, 0xe1, 0xf9, 0x6e, 0xcb);
SINGLE_COMPARE(vmovq(rbx, xmm1), 0xc4, 0xe1, 0xf9, 0x7e, 0xcb);
SINGLE_COMPARE(vmovq(xmm1, qword[r9]), 0xc4, 0xc1, 0xf9, 0x6e, 0x09);
SINGLE_COMPARE(vmovq(qword[r9], xmm1), 0xc4, 0xc1, 0xf9, 0x7e, 0x09);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AVXConversionInstructionForms")
{
SINGLE_COMPARE(vcvttsd2si(ecx, xmm0), 0xc4, 0xe1, 0x7b, 0x2c, 0xc8);
SINGLE_COMPARE(vcvttsd2si(r9d, xmmword[rcx + rdx]), 0xc4, 0x61, 0x7b, 0x2c, 0x0c, 0x11);
SINGLE_COMPARE(vcvttsd2si(rdx, xmm0), 0xc4, 0xe1, 0xfb, 0x2c, 0xd0);
SINGLE_COMPARE(vcvttsd2si(r13, xmmword[rcx + rdx]), 0xc4, 0x61, 0xfb, 0x2c, 0x2c, 0x11);
SINGLE_COMPARE(vcvtsi2sd(xmm5, xmm10, ecx), 0xc4, 0xe1, 0x2b, 0x2a, 0xe9);
SINGLE_COMPARE(vcvtsi2sd(xmm6, xmm11, dword[rcx + rdx]), 0xc4, 0xe1, 0x23, 0x2a, 0x34, 0x11);
SINGLE_COMPARE(vcvtsi2sd(xmm5, xmm10, r13), 0xc4, 0xc1, 0xab, 0x2a, 0xed);
SINGLE_COMPARE(vcvtsi2sd(xmm6, xmm11, qword[rcx + rdx]), 0xc4, 0xe1, 0xa3, 0x2a, 0x34, 0x11);
SINGLE_COMPARE(vcvtsd2ss(xmm5, xmm10, xmm11), 0xc4, 0xc1, 0x2b, 0x5a, 0xeb);
SINGLE_COMPARE(vcvtsd2ss(xmm6, xmm11, qword[rcx + rdx]), 0xc4, 0xe1, 0xa3, 0x5a, 0x34, 0x11);
SINGLE_COMPARE(vcvtss2sd(xmm3, xmm8, xmm12), 0xc4, 0xc1, 0x3a, 0x5a, 0xdc);
SINGLE_COMPARE(vcvtss2sd(xmm4, xmm9, dword[rcx + rsi]), 0xc4, 0xe1, 0x32, 0x5a, 0x24, 0x31);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "AVXTernaryInstructionForms")
{
SINGLE_COMPARE(vroundsd(xmm7, xmm12, xmm3, RoundingModeX64::RoundToNegativeInfinity), 0xc4, 0xe3, 0x19, 0x0b, 0xfb, 0x09);
SINGLE_COMPARE(
vroundsd(xmm8, xmm13, xmmword[r13 + rdx], RoundingModeX64::RoundToPositiveInfinity), 0xc4, 0x43, 0x11, 0x0b, 0x44, 0x15, 0x00, 0x0a
);
SINGLE_COMPARE(vroundsd(xmm9, xmm14, xmmword[rcx + r10], RoundingModeX64::RoundToZero), 0xc4, 0x23, 0x09, 0x0b, 0x0c, 0x11, 0x0b);
SINGLE_COMPARE(vblendvpd(xmm7, xmm12, xmmword[rcx + r10], xmm5), 0xc4, 0xa3, 0x19, 0x4b, 0x3c, 0x11, 0x50);
SINGLE_COMPARE(vpshufps(xmm7, xmm12, xmmword[rcx + r10], 0b11010100), 0xc4, 0xa1, 0x18, 0xc6, 0x3c, 0x11, 0xd4);
SINGLE_COMPARE(vpinsrd(xmm7, xmm12, xmmword[rcx + r10], 2), 0xc4, 0xa3, 0x19, 0x22, 0x3c, 0x11, 0x02);
SINGLE_COMPARE(vdpps(xmm7, xmm12, xmmword[rcx + r10], 2), 0xc4, 0xa3, 0x19, 0x40, 0x3c, 0x11, 0x02);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "MiscInstructions")
{
SINGLE_COMPARE(int3(), 0xcc);
SINGLE_COMPARE(ud2(), 0x0f, 0x0b);
SINGLE_COMPARE(bsr(eax, edx), 0x0f, 0xbd, 0xc2);
SINGLE_COMPARE(bsf(eax, edx), 0x0f, 0xbc, 0xc2);
SINGLE_COMPARE(bswap(eax), 0x0f, 0xc8);
SINGLE_COMPARE(bswap(r12d), 0x41, 0x0f, 0xcc);
SINGLE_COMPARE(bswap(rax), 0x48, 0x0f, 0xc8);
SINGLE_COMPARE(bswap(r12), 0x49, 0x0f, 0xcc);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "LabelLea")
{
CHECK(check(
[](AssemblyBuilderX64& build)
{
Label fn;
build.lea(rax, fn);
build.ret();
build.setLabel(fn);
build.ret();
},
{0x48, 0x8d, 0x05, 0x01, 0x00, 0x00, 0x00, 0xc3, 0xc3}
));
}
TEST_CASE("LogTest")
{
AssemblyBuilderX64 build(/* logText= */ true);
build.push(r12);
build.align(8);
build.align(8, AlignmentDataX64::Int3);
build.align(8, AlignmentDataX64::Ud2);
build.add(rax, rdi);
build.add(rcx, 8);
build.sub(dword[rax], 0x1fdc);
build.and_(dword[rcx], 0x37);
build.mov(rdi, qword[rax + rsi * 2]);
build.vaddss(xmm0, xmm0, dword[rax + r14 * 2 + 0x1c]);
Label start = build.setLabel();
build.cmp(rsi, rdi);
build.jcc(ConditionX64::Equal, start);
build.lea(rcx, start);
build.lea(rcx, addr[rdx]);
build.jmp(qword[rdx]);
build.vaddps(ymm9, ymm12, ymmword[rbp + 0xc]);
build.vaddpd(ymm2, ymm7, build.f64(2.5));
build.neg(qword[rbp + r12 * 2]);
build.mov64(r10, 0x1234567812345678ll);
build.vmovapd(xmmword[rax], xmm11);
build.movzx(eax, byte[rcx]);
build.movsx(rsi, word[r12]);
build.imul(rcx, rdx);
build.imul(rcx, rdx, 8);
build.vroundsd(xmm1, xmm2, xmm3, RoundingModeX64::RoundToNearestEven);
build.add(rdx, qword[rcx - 12]);
build.pop(r12);
build.cmov(ConditionX64::AboveEqual, rax, rbx);
build.ret();
build.int3();
build.nop();
build.nop(2);
build.nop(3);
build.nop(4);
build.nop(5);
build.nop(6);
build.nop(7);
build.nop(8);
build.nop(9);
build.finalize();
std::string expected = R"(
push r12
; align 8
nop word ptr[rax+rax] ; 6-byte nop
; align 8 using int3
; align 8 using ud2
add rax,rdi
add rcx,8
sub dword ptr [rax],1FDCh
and dword ptr [rcx],37h
mov rdi,qword ptr [rax+rsi*2]
vaddss xmm0,xmm0,dword ptr [rax+r14*2+01Ch]
.L1:
cmp rsi,rdi
je .L1
lea rcx,.L1
lea rcx,[rdx]
jmp qword ptr [rdx]
vaddps ymm9,ymm12,ymmword ptr [rbp+0Ch]
vaddpd ymm2,ymm7,qword ptr [.start-8]
neg qword ptr [rbp+r12*2]
mov r10,1234567812345678h
vmovapd xmmword ptr [rax],xmm11
movzx eax,byte ptr [rcx]
movsx rsi,word ptr [r12]
imul rcx,rdx
imul rcx,rdx,8
vroundsd xmm1,xmm2,xmm3,8
add rdx,qword ptr [rcx-0Ch]
pop r12
cmovae rax,rbx
ret
int3
nop
xchg ax, ax ; 2-byte nop
nop dword ptr[rax] ; 3-byte nop
nop dword ptr[rax] ; 4-byte nop
nop dword ptr[rax+rax] ; 5-byte nop
nop word ptr[rax+rax] ; 6-byte nop
nop dword ptr[rax] ; 7-byte nop
nop dword ptr[rax+rax] ; 8-byte nop
nop word ptr[rax+rax] ; 9-byte nop
)";
CHECK("\n" + build.text == expected);
}
TEST_CASE_FIXTURE(AssemblyBuilderX64Fixture, "Constants")
{
// clang-format off
CHECK(check(
[](AssemblyBuilderX64& build) {
build.xor_(rax, rax);
build.add(rax, build.i64(0x1234567887654321));
build.vmovss(xmm2, build.f32(1.0f));
build.vmovsd(xmm3, build.f64(1.0));
build.vmovaps(xmm4, build.f32x4(1.0f, 2.0f, 4.0f, 8.0f));
char arr[16] = "hello world!123";
build.vmovupd(xmm5, build.bytes(arr, 16, 8));
build.vmovapd(xmm5, build.f64x2(5.0, 6.0));
build.ret();
},
{
0x48, 0x33, 0xc0,
0x48, 0x03, 0x05, 0xee, 0xff, 0xff, 0xff,
0xc4, 0xe1, 0x7a, 0x10, 0x15, 0xe1, 0xff, 0xff, 0xff,
0xc4, 0xe1, 0x7b, 0x10, 0x1d, 0xcc, 0xff, 0xff, 0xff,
0xc4, 0xe1, 0x78, 0x28, 0x25, 0xab, 0xff, 0xff, 0xff,
0xc4, 0xe1, 0x79, 0x10, 0x2d, 0x92, 0xff, 0xff, 0xff,
0xc4, 0xe1, 0x79, 0x28, 0x2d, 0x79, 0xff, 0xff, 0xff,
0xc3
},
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x40,
'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd', '!', '1', '2', '3', 0x0,
0x00, 0x00, 0x80, 0x3f,
0x00, 0x00, 0x00, 0x40,
0x00, 0x00, 0x80, 0x40,
0x00, 0x00, 0x00, 0x41,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // padding to align f32x4
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f,
0x00, 0x00, 0x00, 0x00, // padding to align f64
0x00, 0x00, 0x80, 0x3f,
0x21, 0x43, 0x65, 0x87, 0x78, 0x56, 0x34, 0x12,
}));
// clang-format on
}
TEST_CASE("ConstantStorage")
{
AssemblyBuilderX64 build(/* logText= */ false);
for (int i = 0; i <= 3000; i++)
build.vaddss(xmm0, xmm0, build.i32(i));
build.finalize();
CHECK(build.data.size() == 12004);
for (int i = 0; i <= 3000; i++)
{
CHECK(build.data[i * 4 + 0] == ((3000 - i) & 0xff));
CHECK(build.data[i * 4 + 1] == ((3000 - i) >> 8));
CHECK(build.data[i * 4 + 2] == 0x00);
CHECK(build.data[i * 4 + 3] == 0x00);
}
}
TEST_CASE("ConstantStorageDedup")
{
AssemblyBuilderX64 build(/* logText= */ false);
for (int i = 0; i <= 3000; i++)
build.vaddss(xmm0, xmm0, build.f32(1.0f));
build.finalize();
CHECK(build.data.size() == 4);
CHECK(build.data[0] == 0x00);
CHECK(build.data[1] == 0x00);
CHECK(build.data[2] == 0x80);
CHECK(build.data[3] == 0x3f);
}
TEST_CASE("ConstantCaching")
{
AssemblyBuilderX64 build(/* logText= */ false);
OperandX64 two = build.f64(2);
// Force data relocation
for (int i = 0; i < 4096; i++)
build.f64(i);
CHECK(build.f64(2).imm == two.imm);
build.finalize();
}
TEST_SUITE_END();
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