sequential_loops.ll
12 KB
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; RUN: opt -S %loadPolly -basicaa -polly-dependences -analyze -polly-dependences-analysis-type=value-based < %s | FileCheck %s -check-prefix=VALUE
; RUN: opt -S %loadPolly -basicaa -polly-dependences -analyze -polly-dependences-analysis-type=memory-based < %s | FileCheck %s -check-prefix=MEMORY
; RUN: opt -S %loadPolly -basicaa -polly-dependences -analyze -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise < %s | FileCheck %s -check-prefix=VALUE_ACCESS
; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes':
; VALUE-NEXT: RAW dependences:
; VALUE-NEXT: { }
; VALUE-NEXT: WAR dependences:
; VALUE-NEXT: { }
; VALUE-NEXT: WAW dependences:
; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
;
;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes':
;VALUE_ACCESS-NEXT: RAW dependences:
;VALUE_ACCESS-NEXT: { }
;VALUE_ACCESS-NEXT: WAR dependences:
;VALUE_ACCESS-NEXT: { }
;VALUE_ACCESS-NEXT: WAW dependences:
;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 10 <= i0 <= 99; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
;
; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes':
; VALUE-NEXT: RAW dependences:
; VALUE-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
; VALUE-NEXT: WAR dependences:
; VALUE-NEXT: { }
; VALUE-NEXT: WAW dependences:
; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9 }
;
;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes':
;VALUE_ACCESS-NEXT: RAW dependences:
;VALUE_ACCESS-NEXT: { [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Read0[]] : 10 <= i0 <= 99; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Read0[]] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
;VALUE_ACCESS-NEXT: WAR dependences:
;VALUE_ACCESS-NEXT: { }
;VALUE_ACCESS-NEXT: WAW dependences:
;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9 }
;
; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read':
; VALUE-NEXT: RAW dependences:
; VALUE-NEXT: { }
; VALUE-NEXT: WAR dependences:
; VALUE-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
; VALUE-NEXT: WAW dependences:
; VALUE-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9 }
;
;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read':
;VALUE_ACCESS-NEXT: RAW dependences:
;VALUE_ACCESS-NEXT: { }
;VALUE_ACCESS-NEXT: WAR dependences:
;VALUE_ACCESS-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Read0[]] -> [Stmt_S2[i0] -> Stmt_S2_Write0[]] : 0 <= i0 <= 9; [Stmt_S1[i0] -> Stmt_S1_Read0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 10 <= i0 <= 99; Stmt_S1[i0] -> Stmt_S3[i0] : 10 <= i0 <= 99 }
;VALUE_ACCESS-NEXT: WAW dependences:
;VALUE_ACCESS-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; [Stmt_S2[i0] -> Stmt_S2_Write0[]] -> [Stmt_S3[i0] -> Stmt_S3_Write0[]] : 0 <= i0 <= 9 }
;
; VALUE-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset':
; VALUE-NEXT: RAW dependences:
; VALUE-NEXT: [p] -> { Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p }
; VALUE-NEXT: WAR dependences:
; VALUE-NEXT: [p] -> { }
; VALUE-NEXT: WAW dependences:
; VALUE-NEXT: [p] -> { }
;
;VALUE_ACCESS-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset':
;VALUE_ACCESS-NEXT: RAW dependences:
;VALUE_ACCESS-NEXT: [p] -> { [Stmt_S1[i0] -> Stmt_S1_Write0[]] -> [Stmt_S2[-p + i0] -> Stmt_S2_Read0[]] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p; Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p }
;VALUE_ACCESS-NEXT: WAR dependences:
;VALUE_ACCESS-NEXT: [p] -> { }
;VALUE_ACCESS-NEXT: WAW dependences:
;VALUE_ACCESS-NEXT: [p] -> { }
; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'sequential_writes':
; MEMORY-NEXT: RAW dependences:
; MEMORY-NEXT: { }
; MEMORY-NEXT: WAR dependences:
; MEMORY-NEXT: { }
; MEMORY-NEXT: WAW dependences:
; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 }
;
; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'read_after_writes':
; MEMORY-NEXT: RAW dependences:
; MEMORY-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 }
; MEMORY-NEXT: WAR dependences:
; MEMORY-NEXT: { }
; MEMORY-NEXT: WAW dependences:
; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9 }
;
; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.3' in function 'write_after_read':
; MEMORY-NEXT: RAW dependences:
; MEMORY-NEXT: { }
; MEMORY-NEXT: WAR dependences:
; MEMORY-NEXT: { Stmt_S1[i0] -> Stmt_S2[i0] : 0 <= i0 <= 9; Stmt_S1[i0] -> Stmt_S3[i0] : 0 <= i0 <= 99 }
; MEMORY-NEXT: WAW dependences:
; MEMORY-NEXT: { Stmt_S2[i0] -> Stmt_S3[i0] : 0 <= i0 <= 9 }
;
; MEMORY-LABEL: Printing analysis 'Polly - Calculate dependences' for region: 'S1 => exit.2' in function 'parametric_offset':
; MEMORY-NEXT: RAW dependences:
; MEMORY-NEXT: [p] -> { Stmt_S1[i0] -> Stmt_S2[-p + i0] : i0 >= p and 0 <= i0 <= 99 and i0 <= 9 + p }
; MEMORY-NEXT: WAR dependences:
; MEMORY-NEXT: [p] -> { }
; MEMORY-NEXT: WAW dependences:
; MEMORY-NEXT: [p] -> { }
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
; for(i = 0; i < 100; i++ )
; S1: A[i] = 2;
;
; for (i = 0; i < 10; i++ )
; S2: A[i] = 5;
;
; for (i = 0; i < 200; i++ )
; S3: A[i] = 5;
define void @sequential_writes() {
entry:
%A = alloca [200 x i32]
br label %S1
S1:
%indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ]
%arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
store i32 2, i32* %arrayidx.1
%indvar.next.1 = add i64 %indvar.1, 1
%exitcond.1 = icmp ne i64 %indvar.next.1, 100
br i1 %exitcond.1, label %S1, label %exit.1
exit.1:
br label %S2
S2:
%indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ]
%arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
store i32 5, i32* %arrayidx.2
%indvar.next.2 = add i64 %indvar.2, 1
%exitcond.2 = icmp ne i64 %indvar.next.2, 10
br i1 %exitcond.2, label %S2, label %exit.2
exit.2:
br label %S3
S3:
%indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ]
%arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3
store i32 7, i32* %arrayidx.3
%indvar.next.3 = add i64 %indvar.3, 1
%exitcond.3 = icmp ne i64 %indvar.next.3, 200
br i1 %exitcond.3, label %S3 , label %exit.3
exit.3:
ret void
}
; for(i = 0; i < 100; i++ )
; S1: A[i] = 2;
;
; for (i = 0; i < 10; i++ )
; S2: A[i] = 5;
;
; for (i = 0; i < 200; i++ )
; S3: B[i] = A[i];
define void @read_after_writes() {
entry:
%A = alloca [200 x i32]
%B = alloca [200 x i32]
br label %S1
S1:
%indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ]
%arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
store i32 2, i32* %arrayidx.1
%indvar.next.1 = add i64 %indvar.1, 1
%exitcond.1 = icmp ne i64 %indvar.next.1, 100
br i1 %exitcond.1, label %S1, label %exit.1
exit.1:
br label %S2
S2:
%indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ]
%arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
store i32 5, i32* %arrayidx.2
%indvar.next.2 = add i64 %indvar.2, 1
%exitcond.2 = icmp ne i64 %indvar.next.2, 10
br i1 %exitcond.2, label %S2, label %exit.2
exit.2:
br label %S3
S3:
%indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ]
%arrayidx.3.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3
%arrayidx.3.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.3
%val = load i32, i32* %arrayidx.3.a
store i32 %val, i32* %arrayidx.3.b
%indvar.next.3 = add i64 %indvar.3, 1
%exitcond.3 = icmp ne i64 %indvar.next.3, 200
br i1 %exitcond.3, label %S3 , label %exit.3
exit.3:
ret void
}
; for(i = 0; i < 100; i++ )
; S1: B[i] = A[i];
;
; for (i = 0; i < 10; i++ )
; S2: A[i] = 5;
;
; for (i = 0; i < 200; i++ )
; S3: A[i] = 10;
define void @write_after_read() {
entry:
%A = alloca [200 x i32]
%B = alloca [200 x i32]
br label %S1
S1:
%indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ]
%arrayidx.1.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
%arrayidx.1.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.1
%val = load i32, i32* %arrayidx.1.a
store i32 %val, i32* %arrayidx.1.b
%indvar.next.1 = add i64 %indvar.1, 1
%exitcond.1 = icmp ne i64 %indvar.next.1, 100
br i1 %exitcond.1, label %S1, label %exit.1
exit.1:
br label %S2
S2:
%indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ]
%arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
store i32 5, i32* %arrayidx.2
%indvar.next.2 = add i64 %indvar.2, 1
%exitcond.2 = icmp ne i64 %indvar.next.2, 10
br i1 %exitcond.2, label %S2, label %exit.2
exit.2:
br label %S3
S3:
%indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %S3 ]
%arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3
store i32 10, i32* %arrayidx.3
%indvar.next.3 = add i64 %indvar.3, 1
%exitcond.3 = icmp ne i64 %indvar.next.3, 200
br i1 %exitcond.3, label %S3 , label %exit.3
exit.3:
ret void
}
; for(i = 0; i < 100; i++ )
; S1: A[i] = 10
;
; for(i = 0; i < 100; i++ )
; S2: B[i] = A[i + p];
define void @parametric_offset(i64 %p) {
entry:
%A = alloca [200 x i32]
%B = alloca [200 x i32]
br label %S1
S1:
%indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %S1 ]
%arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
store i32 10, i32* %arrayidx.1
%indvar.next.1 = add i64 %indvar.1, 1
%exitcond.1 = icmp ne i64 %indvar.next.1, 100
br i1 %exitcond.1, label %S1, label %exit.1
exit.1:
br label %S2
S2:
%indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %S2 ]
%sum = add i64 %indvar.2, %p
%arrayidx.2.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %sum
%arrayidx.2.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.2
%val = load i32, i32* %arrayidx.2.a
store i32 %val, i32* %arrayidx.2.b
%indvar.next.2 = add i64 %indvar.2, 1
%exitcond.2 = icmp ne i64 %indvar.next.2, 10
br i1 %exitcond.2, label %S2, label %exit.2
exit.2:
ret void
}