Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/polly/test/DeadCodeElimination/chained_iterations.ll

@@ -0,0 +1,61 @@
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze < %s | FileCheck %s
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze < %s | FileCheck %s -check-prefix=CHECK-DCE
+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 < 200; i++ )
+;   A[i] = 2;
+;
+; for (i = 0; i < 200; i++ )
+;   A[i]  = 5;
+;
+; for (i = 0; i < 200; i++ )
+;   A[i] = 5;
+define void @main() nounwind uwtable {
+entry:
+  %A = alloca [200 x i32], align 16
+  br label %for.body.1
+
+for.body.1:
+  %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %for.body.1 ]
+  %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
+  store i32 2, i32* %arrayidx.1, align 4
+  %indvar.next.1 = add i64 %indvar.1, 1
+  %exitcond.1 = icmp ne i64 %indvar.next.1, 200
+  br i1 %exitcond.1, label %for.body.1, label %exit.1
+
+exit.1:
+  br label %for.body.2
+
+for.body.2:
+  %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %for.body.2 ]
+  %arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
+  store i32 5, i32* %arrayidx.2, align 4
+  %indvar.next.2 = add i64 %indvar.2, 1
+  %exitcond.2 = icmp ne i64 %indvar.next.2, 200
+  br i1 %exitcond.2, label %for.body.2, label %exit.2
+
+exit.2:
+  br label %for.body.3
+
+for.body.3:
+  %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %for.body.3 ]
+  %arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3
+  store i32 7, i32* %arrayidx.3, align 4
+  %indvar.next.3 = add i64 %indvar.3, 1
+  %exitcond.3 = icmp ne i64 %indvar.next.3, 200
+  br i1 %exitcond.3, label %for.body.3 , label %exit.3
+
+exit.3:
+  ret void
+}
+
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_1(c0);
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_2(c0);
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_3(c0);
+
+; CHECK-DCE: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK-DCE:   Stmt_for_body_3(c0);
+

external/llvm-project/polly/test/DeadCodeElimination/chained_iterations_2.ll

@@ -0,0 +1,65 @@
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze < %s | FileCheck %s
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze < %s | FileCheck %s -check-prefix=CHECK-DCE
+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 < 200; i++ )
+;   A[i] = 2;
+;
+; for (i = 0; i < 200; i++ )
+;   B[i] = A[i];
+;
+; for (i = 0; i < 200; i++ )
+;   B[i] = A[i] = 5;
+define void @main() nounwind uwtable {
+entry:
+  %A = alloca [200 x i32], align 16
+  %B = alloca [200 x i32], align 16
+  br label %for.body.1
+
+for.body.1:
+  %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %for.body.1 ]
+  %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
+  store i32 2, i32* %arrayidx.1, align 4
+  %indvar.next.1 = add i64 %indvar.1, 1
+  %exitcond.1 = icmp ne i64 %indvar.next.1, 200
+  br i1 %exitcond.1, label %for.body.1, label %exit.1
+
+exit.1:
+  br label %for.body.2
+
+for.body.2:
+  %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %for.body.2 ]
+  %arrayidx.2.a = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
+  %val = load i32, i32* %arrayidx.2.a, align 4
+  %arrayidx.2.b = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.2
+  store i32 %val, i32* %arrayidx.2.b, align 4
+  %indvar.next.2 = add i64 %indvar.2, 1
+  %exitcond.2 = icmp ne i64 %indvar.next.2, 200
+  br i1 %exitcond.2, label %for.body.2, label %exit.2
+
+exit.2:
+  br label %for.body.3
+
+for.body.3:
+  %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %for.body.3 ]
+  %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
+  store i32 5, i32* %arrayidx.3.a, align 4
+  store i32 5, i32* %arrayidx.3.b, align 4
+  %indvar.next.3 = add i64 %indvar.3, 1
+  %exitcond.3 = icmp ne i64 %indvar.next.3, 200
+  br i1 %exitcond.3, label %for.body.3 , label %exit.3
+
+exit.3:
+  ret void
+}
+
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_1(c0);
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_2(c0);
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_3(c0);
+
+; CHECK-DCE: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK-DCE:   Stmt_for_body_3(c0);

external/llvm-project/polly/test/DeadCodeElimination/computeout.ll

@@ -0,0 +1,63 @@
+; RUN: opt -S %loadPolly -basicaa -polly-dce -polly-ast -analyze < %s | FileCheck %s
+; RUN: opt -S %loadPolly -basicaa -polly-dce -polly-ast -analyze -polly-dependences-computeout=1 < %s | FileCheck %s -check-prefix=TIMEOUT
+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
+}
+
+; CHECK-NOT: Stmt_S
+; CHECK: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK: Stmt_S3(c0);
+
+; TIMEOUT: for (int c0 = 0; c0 <= 99; c0 += 1)
+; TIMEOUT: Stmt_S1(c0);
+; TIMEOUT: for (int c0 = 0; c0 <= 9; c0 += 1)
+; TIMEOUT: Stmt_S2(c0);
+; TIMEOUT: for (int c0 = 0; c0 <= 199; c0 += 1)
+; TIMEOUT: Stmt_S3(c0);
+

external/llvm-project/polly/test/DeadCodeElimination/dead_iteration_elimination.ll

@@ -0,0 +1,78 @@
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-dce-precise-steps=2 -polly-ast -analyze < %s | FileCheck %s
+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 < 200; i++ )
+;   A[i] = 2;
+;
+; for (i = 0; i < 50; i++ )
+;   A[i]  = 5;
+;
+; for (i = 0; i < 70; i++ )
+;   A[i] = A[i] + 5;
+;
+; for (i = 100; i < 110; i++ )
+;   A[i] = i;
+;
+define void @main() nounwind uwtable {
+entry:
+  %A = alloca [200 x i32], align 16
+  br label %for.body.1
+
+for.body.1:
+  %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %for.body.1 ]
+  %arrayidx.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
+  store i32 2, i32* %arrayidx.1, align 4
+  %indvar.next.1 = add i64 %indvar.1, 1
+  %exitcond.1 = icmp ne i64 %indvar.next.1, 200
+  br i1 %exitcond.1, label %for.body.1, label %exit.1
+
+exit.1:
+  br label %for.body.2
+
+for.body.2:
+  %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %for.body.2 ]
+  %arrayidx.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
+  store i32 5, i32* %arrayidx.2, align 4
+  %indvar.next.2 = add i64 %indvar.2, 1
+  %exitcond.2 = icmp ne i64 %indvar.next.2, 50
+  br i1 %exitcond.2, label %for.body.2, label %exit.2
+
+exit.2:
+  br label %for.body.3
+
+for.body.3:
+  %indvar.3 = phi i64 [ 0, %exit.2 ], [ %indvar.next.3, %for.body.3 ]
+  %arrayidx.3 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.3
+  %val = load i32, i32* %arrayidx.3, align 4
+  %add = add nsw i32 %val, 5
+  store i32 %add, i32* %arrayidx.3, align 4
+  %indvar.next.3 = add i64 %indvar.3, 1
+  %exitcond.3 = icmp ne i64 %indvar.next.3, 70
+  br i1 %exitcond.3, label %for.body.3 , label %exit.3
+
+exit.3:
+  br label %for.body.4
+
+for.body.4:
+  %indvar.4 = phi i64 [ 0, %exit.3 ], [ %indvar.next.4, %for.body.4 ]
+  %indvar.plus = add i64 %indvar.4, 100
+  %trunc = trunc i64 %indvar.plus to i32
+  %arrayidx.4 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.plus
+  store i32 %trunc, i32* %arrayidx.4, align 4
+  %indvar.next.4 = add i64 %indvar.4, 1
+  %exitcond.4 = icmp ne i64 %indvar.next.4, 10
+  br i1 %exitcond.4, label %for.body.4, label %exit.4
+
+exit.4:
+  ret void
+}
+
+; CHECK: for (int c0 = 50; c0 <= 99; c0 += 1)
+; CHECK:   Stmt_for_body_1(c0);
+; CHECK: for (int c0 = 110; c0 <= 199; c0 += 1)
+; CHECK:   Stmt_for_body_1(c0);
+; CHECK: for (int c0 = 0; c0 <= 49; c0 += 1)
+; CHECK:   Stmt_for_body_2(c0);
+; CHECK: for (int c0 = 0; c0 <= 69; c0 += 1)
+; CHECK:   Stmt_for_body_3(c0);
+; CHECK: for (int c0 = 0; c0 <= 9; c0 += 1)

external/llvm-project/polly/test/DeadCodeElimination/non-affine-affine-mix.ll

@@ -0,0 +1,64 @@
+; RUN: opt %loadPolly -polly-allow-nonaffine -polly-dce -polly-ast -analyze < %s | FileCheck %s
+;
+;    void f(int *A) {
+;      for (int i = 0; i < 1024; i++)
+; S1:    A[bar(i)] = i;
+;      for (int i = 0; i < 1024; i++)
+; S2:    A[i2] = i;
+;    }
+
+; We unfortunately do need to execute all iterations of S1, as we do not know
+; the size of A and as a result S1 may write for example to A[1024], which
+; is not overwritten by S2.
+
+; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1)
+; CHECK:   Stmt_S1(c0);
+; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1)
+; CHECK:   Stmt_S2(c0);
+
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+declare i32 @bar(i32) #1
+
+define void @f(i32* %A) {
+entry:
+  br label %for.cond
+
+for.cond:
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %exitcond = icmp ne i32 %i.0, 1024
+  br i1 %exitcond, label %S1, label %next
+
+S1:
+  %nonaff = call i32 @bar(i32 %i.0)
+  %arrayidx = getelementptr inbounds i32, i32* %A, i32 %nonaff
+  store i32 %i.0, i32* %arrayidx, align 4
+  br label %for.inc
+
+for.inc:
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+next:
+ br label %for.cond.2
+
+for.cond.2:
+  %i.2 = phi i32 [ 0, %next ], [ %inc.2, %for.inc.2 ]
+  %exitcond.2 = icmp ne i32 %i.2, 1024
+  br i1 %exitcond.2, label %S2, label %for.end
+
+S2:
+  %arrayidx.2 = getelementptr inbounds i32, i32* %A, i32 %i.2
+  store i32 %i.2, i32* %arrayidx.2, align 4
+  br label %for.inc.2
+
+for.inc.2:
+  %inc.2 = add nsw i32 %i.2, 1
+  br label %for.cond.2
+
+for.end:
+  ret void
+}
+
+attributes #1 = { nounwind readnone }
+

external/llvm-project/polly/test/DeadCodeElimination/non-affine.ll

@@ -0,0 +1,37 @@
+; RUN: opt %loadPolly -polly-allow-nonaffine -polly-dce -polly-ast -analyze < %s | FileCheck %s
+;
+; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1)
+;
+;    void f(int *A) {
+;      for (int i = 0; i < 1024; i++)
+;        A[bar(i)] = i;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+declare i32 @bar(i32) #1
+
+define void @f(i32* %A) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %exitcond = icmp ne i32 %i.0, 1024
+  br i1 %exitcond, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  %nonaff = call i32 @bar(i32 %i.0)
+  %arrayidx = getelementptr inbounds i32, i32* %A, i32 %nonaff
+  store i32 %i.0, i32* %arrayidx, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %for.body
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+}
+
+attributes #1 = { nounwind readnone }

external/llvm-project/polly/test/DeadCodeElimination/null_schedule.ll

@@ -0,0 +1,56 @@
+; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze < %s | FileCheck %s -check-prefix=CHECK-DCE
+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"
+; A[0] = 1;
+;
+; for(i = 0; i < 100; i++ )
+;   A[i+1] = A[i] * 2;
+;
+; for (i = 0; i < 200; i++ )
+;   A[i] = B[i] * 2;
+
+define void @main() nounwind uwtable {
+
+entry:
+  %A = alloca [200 x i32], align 16
+  %B = alloca [200 x i32], align 16
+
+  %A.zero = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 0
+  store i32 1, i32* %A.zero, align 4
+
+  br label %for.body.1
+
+for.body.1:
+  %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %for.body.1 ]
+  %indvar.next.1 = add i64 %indvar.1, 1
+
+  %A.current.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1
+  %val1.1 = load i32, i32* %A.current.1, align 4
+  %val2.1 = mul i32 %val1.1, 2
+  %A.next.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.next.1
+  store i32 %val2.1, i32* %A.next.1, align 4
+
+  %exitcond.1 = icmp ne i64 %indvar.next.1, 100
+  br i1 %exitcond.1, label %for.body.1, label %exit.1
+
+exit.1:
+  br label %for.body.2
+
+for.body.2:
+  %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %for.body.2 ]
+
+  %B.current.2 = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.2
+  %val1.2 = load i32, i32* %B.current.2, align 4
+  %val2.2 = mul i32 %val1.2, 2
+  %A.current.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2
+  store i32 %val2.2, i32* %A.current.2, align 4
+
+  %indvar.next.2 = add i64 %indvar.2, 1
+  %exitcond.2 = icmp ne i64 %indvar.next.2, 200
+  br i1 %exitcond.2, label %for.body.2, label %exit.3
+
+exit.3:
+  ret void
+}
+
+; CHECK-DCE: for (int c0 = 0; c0 <= 199; c0 += 1)
+; CHECK-DCE:   Stmt_for_body_2(c0);