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Arm64Emitter: Add additional alignment assertions 

Before, unaligned values would be silently ignored in most cases.
This commit is contained in:
Pokechu22 2022-07-14 20:00:12 -07:00
parent afe5adb74d
commit a34d5e5960
1 changed files with 34 additions and 4 deletions
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38
Source/Core/Common/Arm64Emitter.cpp
View File

@ -485,13 +485,22 @@ void ARM64XEmitter::EncodeLoadStorePairedInst(u32 op, ARM64Reg Rt, ARM64Reg Rt2,
bool bVec = IsVector(Rt);
if (b128Bit)
{
ASSERT_MSG(DYNA_REC, (imm & 0xf) == 0, "128-bit load/store must use aligned offset: {}", imm);
imm >>= 4;
}
else if (b64Bit)
{
ASSERT_MSG(DYNA_REC, (imm & 0x7) == 0, "64-bit load/store must use aligned offset: {}", imm);
imm >>= 3;
}
else
{
ASSERT_MSG(DYNA_REC, (imm & 0x3) == 0, "32-bit load/store must use aligned offset: {}", imm);
imm >>= 2;
}
ASSERT_MSG(DYNA_REC, !(imm & ~0xF), "offset too large {}", imm);
ASSERT_MSG(DYNA_REC, (imm & ~0xF) == 0, "offset too large {}", imm);
u32 opc = 0;
if (b128Bit)
@ -524,11 +533,20 @@ void ARM64XEmitter::EncodeLoadStoreIndexedInst(u32 op, ARM64Reg Rt, ARM64Reg Rn,
bool bVec = IsVector(Rt);
if (size == 64)
{
ASSERT_MSG(DYNA_REC, (imm & 0x7) == 0, "64-bit load/store must use aligned offset: {}", imm);
imm >>= 3;
}
else if (size == 32)
{
ASSERT_MSG(DYNA_REC, (imm & 0x3) == 0, "32-bit load/store must use aligned offset: {}", imm);
imm >>= 2;
}
else if (size == 16)
{
ASSERT_MSG(DYNA_REC, (imm & 0x1) == 0, "16-bit load/store must use aligned offset: {}", imm);
imm >>= 1;
}
ASSERT_MSG(DYNA_REC, imm >= 0, "(IndexType::Unsigned): offset must be positive {}", imm);
ASSERT_MSG(DYNA_REC, !(imm & ~0xFFF), "(IndexType::Unsigned): offset too large {}", imm);
@ -615,10 +633,12 @@ void ARM64XEmitter::EncodeLoadStorePair(u32 op, u32 load, IndexType type, ARM64R
if (b64Bit)
{
op |= 0b10;
ASSERT_MSG(DYNA_REC, (imm & 0x7) == 0, "64-bit load/store must use aligned offset: {}", imm);
imm >>= 3;
}
else
{
ASSERT_MSG(DYNA_REC, (imm & 0x3) == 0, "32-bit load/store must use aligned offset: {}", imm);
imm >>= 2;
}
@ -2072,19 +2092,29 @@ void ARM64FloatEmitter::EmitLoadStoreImmediate(u8 size, u32 opc, IndexType type,
if (type == IndexType::Unsigned)
{
ASSERT_MSG(DYNA_REC, !(imm & ((size - 1) >> 3)),
"(IndexType::Unsigned) immediate offset must be aligned to size! ({}) ({})", imm,
fmt::ptr(m_emit->GetCodePtr()));
ASSERT_MSG(DYNA_REC, imm >= 0, "(IndexType::Unsigned) immediate offset must be positive! ({})",
imm);
if (size == 16)
{
ASSERT_MSG(DYNA_REC, (imm & 0x1) == 0, "16-bit load/store must use aligned offset: {}", imm);
imm >>= 1;
}
else if (size == 32)
{
ASSERT_MSG(DYNA_REC, (imm & 0x3) == 0, "32-bit load/store must use aligned offset: {}", imm);
imm >>= 2;
}
else if (size == 64)
{
ASSERT_MSG(DYNA_REC, (imm & 0x7) == 0, "64-bit load/store must use aligned offset: {}", imm);
imm >>= 3;
}
else if (size == 128)
{
ASSERT_MSG(DYNA_REC, (imm & 0xf) == 0, "128-bit load/store must use aligned offset: {}", imm);
imm >>= 4;
}
ASSERT_MSG(DYNA_REC, imm <= 0xFFF, "Immediate value is too big: {}", imm);
encoded_imm = (imm & 0xFFF);
}
else