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-rw-r--r--polly/test/Dependences/sequential_loops.ll296
1 files changed, 296 insertions, 0 deletions
diff --git a/polly/test/Dependences/sequential_loops.ll b/polly/test/Dependences/sequential_loops.ll
new file mode 100644
index 00000000000..c82b703a54c
--- /dev/null
+++ b/polly/test/Dependences/sequential_loops.ll
@@ -0,0 +1,296 @@
+; 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
+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"
+target triple = "x86_64-pc-linux-gnu"
+
+; 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]* %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]* %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]* %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
+}
+
+; VALUE: region: 'S1 => exit.3' in function 'sequential_writes':
+; VALUE: RAW dependences:
+; VALUE: { }
+; VALUE: WAR dependences:
+; VALUE: { }
+; VALUE: WAW dependences:
+; VALUE: {
+; VALUE: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9;
+; VALUE: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9;
+; VALUE: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 10 and i0 <= 99
+; VALUE: }
+
+; MEMORY: region: 'S1 => exit.3' in function 'sequential_writes':
+; MEMORY: RAW dependences:
+; MEMORY: { }
+; MEMORY: WAR dependences:
+; MEMORY: { }
+; MEMORY: WAW dependences:
+; MEMORY: {
+; MEMORY: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9;
+; MEMORY: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9;
+; MEMORY: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 99
+; MEMORY: }
+
+; 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]* %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]* %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]* %A, i64 0, i64 %indvar.3
+ %arrayidx.3.b = getelementptr [200 x i32]* %B, i64 0, i64 %indvar.3
+ %val = load 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
+}
+
+; VALUE: region: 'S1 => exit.3' in function 'read_after_writes':
+; VALUE: RAW dependences:
+; VALUE: {
+; VALUE: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9;
+; VALUE: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 10 and i0 <= 99
+; VALUE: }
+; VALUE: WAR dependences:
+; VALUE: { }
+; VALUE: WAW dependences:
+; VALUE: {
+; VALUE: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9
+; VALUE: }
+
+; MEMORY: region: 'S1 => exit.3' in function 'read_after_writes':
+; MEMORY: RAW dependences:
+; MEMORY: {
+; MEMORY: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9;
+; MEMORY: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 99
+; MEMORY: }
+; MEMORY: WAR dependences:
+; MEMORY: { }
+; MEMORY: WAW dependences:
+; MEMORY: {
+; MEMORY: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9
+; MEMORY: }
+
+; 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]* %A, i64 0, i64 %indvar.1
+ %arrayidx.1.b = getelementptr [200 x i32]* %B, i64 0, i64 %indvar.1
+ %val = load 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]* %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]* %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
+}
+
+; VALUE: region: 'S1 => exit.3' in function 'write_after_read':
+; VALUE: RAW dependences:
+; VALUE: {
+; VALUE: }
+; VALUE: WAR dependences:
+; VALUE: {
+; VALUE: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9;
+; VALUE: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 10 and i0 <= 99
+; VALUE: }
+; VALUE: WAW dependences:
+; VALUE: {
+; VALUE: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9
+; VALUE: }
+
+; MEMORY: region: 'S1 => exit.3' in function 'write_after_read':
+; MEMORY: RAW dependences:
+; MEMORY: {
+; MEMORY: }
+; MEMORY: WAR dependences:
+; MEMORY: {
+; MEMORY: Stmt_S1[i0] -> Stmt_S2[i0] : i0 >= 0 and i0 <= 9;
+; MEMORY: Stmt_S1[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9
+; MEMORY: }
+; MEMORY: WAW dependences:
+; MEMORY: {
+; MEMORY: Stmt_S2[i0] -> Stmt_S3[i0] : i0 >= 0 and i0 <= 9
+; MEMORY: }
+
+; 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]* %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]* %A, i64 0, i64 %sum
+ %arrayidx.2.b = getelementptr [200 x i32]* %B, i64 0, i64 %indvar.2
+ %val = load 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
+}
+
+; VALUE: region: 'S1 => exit.2' in function 'parametric_offset':
+; VALUE: RAW dependences:
+; VALUE: [p] -> {
+; VALUE: Stmt_S1[i0] -> Stmt_S2[-p + i0] :
+; VALUE: i0 >= p and i0 <= 9 + p and i0 >= 0 and i0 <= 99
+; VALUE: }
+; VALUE: WAR dependences:
+; VALUE: [p] -> {
+; VALUE: }
+; VALUE: WAW dependences:
+; VALUE: [p] -> {
+; VALUE: }
+
+; MEMORY: region: 'S1 => exit.2' in function 'parametric_offset':
+; MEMORY: RAW dependences:
+; MEMORY: [p] -> {
+; MEMORY: Stmt_S1[i0] -> Stmt_S2[-p + i0] :
+; MEMORY: i0 >= 0 and i0 <= 99 and i0 >= p and i0 <= 9 + p
+; MEMORY: }
+; MEMORY: WAR dependences:
+; MEMORY: [p] -> {
+; MEMORY: }
+; MEMORY: WAW dependences:
+; MEMORY: [p] -> {
+; MEMORY: }
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