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jketema merged 2 commits into from
Jun 10, 2025
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C++: Add basic Aarch64 Neon IR test #19715

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7d1b5ce
C++: Add basic Aarch64 Neon test
jketema Jun 10, 2025
a4be276
C++: Minor test case reformatting
jketema Jun 10, 2025
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71 changes: 71 additions & 0 deletions cpp/ql/test/library-tests/ir/ir/PrintAST.expected
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Expand Up @@ -58,6 +58,77 @@
#-----| Type = [LongType] unsigned long
#-----| getParameter(1): [Parameter] (unnamed parameter 1)
#-----| Type = [ScopedEnum] align_val_t
arm.cpp:
# 6| [TopLevelFunction] uint8x8_t vadd_u8(uint8x8_t, uint8x8_t)
# 6| <params>:
# 6| getParameter(0): [Parameter] a
# 6| Type = [CTypedefType] uint8x8_t
# 6| getParameter(1): [Parameter] b
# 6| Type = [CTypedefType] uint8x8_t
# 6| getEntryPoint(): [BlockStmt] { ... }
# 7| getStmt(0): [ReturnStmt] return ...
# 7| getExpr(): [AddExpr] ... + ...
# 7| Type = [GNUVectorType] __attribute((neon_vector_type(8))) unsigned char
# 7| ValueCategory = prvalue
# 7| getLeftOperand(): [VariableAccess] a
# 7| Type = [CTypedefType] uint8x8_t
# 7| ValueCategory = prvalue(load)
# 7| getRightOperand(): [VariableAccess] b
# 7| Type = [CTypedefType] uint8x8_t
# 7| ValueCategory = prvalue(load)
# 12| [TopLevelFunction] uint16x8_t __builtin_aarch64_uaddlv8qi_uuu(uint8x8_t, uint8x8_t)
# 12| <params>:
# 12| getParameter(0): [Parameter] (unnamed parameter 0)
# 12| Type = [CTypedefType] uint8x8_t
# 12| getParameter(1): [Parameter] (unnamed parameter 1)
# 12| Type = [CTypedefType] uint8x8_t
# 14| [TopLevelFunction] uint16x8_t vaddl_u8(uint8x8_t, uint8x8_t)
# 14| <params>:
# 14| getParameter(0): [Parameter] a
# 14| Type = [CTypedefType] uint8x8_t
# 14| getParameter(1): [Parameter] b
# 14| Type = [CTypedefType] uint8x8_t
# 14| getEntryPoint(): [BlockStmt] { ... }
# 15| getStmt(0): [ReturnStmt] return ...
# 15| getExpr(): [FunctionCall] call to __builtin_aarch64_uaddlv8qi_uuu
# 15| Type = [CTypedefType] uint16x8_t
# 15| ValueCategory = prvalue
# 15| getArgument(0): [VariableAccess] a
# 15| Type = [CTypedefType] uint8x8_t
# 15| ValueCategory = prvalue(load)
# 15| getArgument(1): [VariableAccess] b
# 15| Type = [CTypedefType] uint8x8_t
# 15| ValueCategory = prvalue(load)
# 18| [TopLevelFunction] uint16x8_t arm_add(uint8x8_t, uint8x8_t)
# 18| <params>:
# 18| getParameter(0): [Parameter] a
# 18| Type = [CTypedefType] uint8x8_t
# 18| getParameter(1): [Parameter] b
# 18| Type = [CTypedefType] uint8x8_t
# 18| getEntryPoint(): [BlockStmt] { ... }
# 19| getStmt(0): [DeclStmt] declaration
# 19| getDeclarationEntry(0): [VariableDeclarationEntry] definition of c
# 19| Type = [CTypedefType] uint8x8_t
# 19| getVariable().getInitializer(): [Initializer] initializer for c
# 19| getExpr(): [FunctionCall] call to vadd_u8
# 19| Type = [CTypedefType] uint8x8_t
# 19| ValueCategory = prvalue
# 19| getArgument(0): [VariableAccess] a
# 19| Type = [CTypedefType] uint8x8_t
# 19| ValueCategory = prvalue(load)
# 19| getArgument(1): [VariableAccess] b
# 19| Type = [CTypedefType] uint8x8_t
# 19| ValueCategory = prvalue(load)
# 20| getStmt(1): [ReturnStmt] return ...
# 20| getExpr(): [FunctionCall] call to vaddl_u8
# 20| Type = [CTypedefType] uint16x8_t
# 20| ValueCategory = prvalue
# 20| getArgument(0): [VariableAccess] a
# 20| Type = [CTypedefType] uint8x8_t
# 20| ValueCategory = prvalue(load)
# 20| getArgument(1): [VariableAccess] c
# 20| Type = [CTypedefType] uint8x8_t
# 20| ValueCategory = prvalue(load)
bad_asts.cpp:
# 5| [CopyAssignmentOperator] Bad::S& Bad::S::operator=(Bad::S const&)
# 5| <params>:
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83 changes: 83 additions & 0 deletions cpp/ql/test/library-tests/ir/ir/aliased_ir.expected
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@@ -1,3 +1,86 @@
arm.cpp:
# 6| uint8x8_t vadd_u8(uint8x8_t, uint8x8_t)
# 6| Block 0
# 6| v6_1(void) = EnterFunction :
# 6| m6_2(unknown) = AliasedDefinition :
# 6| m6_3(unknown) = InitializeNonLocal :
# 6| m6_4(unknown) = Chi : total:m6_2, partial:m6_3
# 6| r6_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 6| m6_6(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[a] : &:r6_5
# 6| r6_7(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 6| m6_8(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[b] : &:r6_7
# 7| r7_1(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[#return] :
# 7| r7_2(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 7| r7_3(__attribute((neon_vector_type(8))) unsigned char) = Load[a] : &:r7_2, m6_6
# 7| r7_4(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 7| r7_5(__attribute((neon_vector_type(8))) unsigned char) = Load[b] : &:r7_4, m6_8
# 7| r7_6(__attribute((neon_vector_type(8))) unsigned char) = Add : r7_3, r7_5
# 7| m7_7(__attribute((neon_vector_type(8))) unsigned char) = Store[#return] : &:r7_1, r7_6
# 6| r6_9(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[#return] :
# 6| v6_10(void) = ReturnValue : &:r6_9, m7_7
# 6| v6_11(void) = AliasedUse : m6_3
# 6| v6_12(void) = ExitFunction :

# 14| uint16x8_t vaddl_u8(uint8x8_t, uint8x8_t)
# 14| Block 0
# 14| v14_1(void) = EnterFunction :
# 14| m14_2(unknown) = AliasedDefinition :
# 14| m14_3(unknown) = InitializeNonLocal :
# 14| m14_4(unknown) = Chi : total:m14_2, partial:m14_3
# 14| r14_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 14| m14_6(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[a] : &:r14_5
# 14| r14_7(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 14| m14_8(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[b] : &:r14_7
# 15| r15_1(glval<__attribute((neon_vector_type(8))) unsigned short>) = VariableAddress[#return] :
# 15| r15_2(glval<unknown>) = FunctionAddress[__builtin_aarch64_uaddlv8qi_uuu] :
# 15| r15_3(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 15| r15_4(__attribute((neon_vector_type(8))) unsigned char) = Load[a] : &:r15_3, m14_6
# 15| r15_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 15| r15_6(__attribute((neon_vector_type(8))) unsigned char) = Load[b] : &:r15_5, m14_8
# 15| r15_7(__attribute((neon_vector_type(8))) unsigned short) = Call[__builtin_aarch64_uaddlv8qi_uuu] : func:r15_2, 0:r15_4, 1:r15_6
# 15| m15_8(unknown) = ^CallSideEffect : ~m14_4
# 15| m15_9(unknown) = Chi : total:m14_4, partial:m15_8
# 15| m15_10(__attribute((neon_vector_type(8))) unsigned short) = Store[#return] : &:r15_1, r15_7
# 14| r14_9(glval<__attribute((neon_vector_type(8))) unsigned short>) = VariableAddress[#return] :
# 14| v14_10(void) = ReturnValue : &:r14_9, m15_10
# 14| v14_11(void) = AliasedUse : ~m15_9
# 14| v14_12(void) = ExitFunction :

# 18| uint16x8_t arm_add(uint8x8_t, uint8x8_t)
# 18| Block 0
# 18| v18_1(void) = EnterFunction :
# 18| m18_2(unknown) = AliasedDefinition :
# 18| m18_3(unknown) = InitializeNonLocal :
# 18| m18_4(unknown) = Chi : total:m18_2, partial:m18_3
# 18| r18_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 18| m18_6(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[a] : &:r18_5
# 18| r18_7(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 18| m18_8(__attribute((neon_vector_type(8))) unsigned char) = InitializeParameter[b] : &:r18_7
# 19| r19_1(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[c] :
# 19| r19_2(glval<unknown>) = FunctionAddress[vadd_u8] :
# 19| r19_3(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 19| r19_4(__attribute((neon_vector_type(8))) unsigned char) = Load[a] : &:r19_3, m18_6
# 19| r19_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[b] :
# 19| r19_6(__attribute((neon_vector_type(8))) unsigned char) = Load[b] : &:r19_5, m18_8
# 19| r19_7(__attribute((neon_vector_type(8))) unsigned char) = Call[vadd_u8] : func:r19_2, 0:r19_4, 1:r19_6
# 19| m19_8(unknown) = ^CallSideEffect : ~m18_4
# 19| m19_9(unknown) = Chi : total:m18_4, partial:m19_8
# 19| m19_10(__attribute((neon_vector_type(8))) unsigned char) = Store[c] : &:r19_1, r19_7
# 20| r20_1(glval<__attribute((neon_vector_type(8))) unsigned short>) = VariableAddress[#return] :
# 20| r20_2(glval<unknown>) = FunctionAddress[vaddl_u8] :
# 20| r20_3(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[a] :
# 20| r20_4(__attribute((neon_vector_type(8))) unsigned char) = Load[a] : &:r20_3, m18_6
# 20| r20_5(glval<__attribute((neon_vector_type(8))) unsigned char>) = VariableAddress[c] :
# 20| r20_6(__attribute((neon_vector_type(8))) unsigned char) = Load[c] : &:r20_5, m19_10
# 20| r20_7(__attribute((neon_vector_type(8))) unsigned short) = Call[vaddl_u8] : func:r20_2, 0:r20_4, 1:r20_6
# 20| m20_8(unknown) = ^CallSideEffect : ~m19_9
# 20| m20_9(unknown) = Chi : total:m19_9, partial:m20_8
# 20| m20_10(__attribute((neon_vector_type(8))) unsigned short) = Store[#return] : &:r20_1, r20_7
# 18| r18_9(glval<__attribute((neon_vector_type(8))) unsigned short>) = VariableAddress[#return] :
# 18| v18_10(void) = ReturnValue : &:r18_9, m20_10
# 18| v18_11(void) = AliasedUse : ~m20_9
# 18| v18_12(void) = ExitFunction :

bad_asts.cpp:
# 9| int Bad::S::MemberFunction<int 6>(int)
# 9| Block 0
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21 changes: 21 additions & 0 deletions cpp/ql/test/library-tests/ir/ir/arm.cpp
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@@ -0,0 +1,21 @@
// semmle-extractor-options: --edg --target --edg linux_arm64

typedef __Uint8x8_t uint8x8_t;
typedef __Uint16x8_t uint16x8_t;

uint8x8_t vadd_u8(uint8x8_t a, uint8x8_t b) {
return a + b;
}

// Workaround: the frontend only exposes this when the arm_neon.h
// header is encountered.
uint16x8_t __builtin_aarch64_uaddlv8qi_uuu(uint8x8_t, uint8x8_t);

uint16x8_t vaddl_u8(uint8x8_t a, uint8x8_t b) {
return __builtin_aarch64_uaddlv8qi_uuu (a, b);
}

uint16x8_t arm_add(uint8x8_t a, uint8x8_t b) {
uint8x8_t c = vadd_u8(a, b);
return vaddl_u8(a, c);
}
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