[polly] r265776 - Add test cases for the removal of error blocks

Johannes Doerfert via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 8 03:26:40 PDT 2016


Author: jdoerfert
Date: Fri Apr  8 05:26:39 2016
New Revision: 265776

URL: http://llvm.org/viewvc/llvm-project?rev=265776&view=rev
Log:
Add test cases for the removal of error blocks

Added:
    polly/trunk/test/ScopInfo/error-blocks-1.ll
    polly/trunk/test/ScopInfo/error-blocks-3.ll

Added: polly/trunk/test/ScopInfo/error-blocks-1.ll
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/test/ScopInfo/error-blocks-1.ll?rev=265776&view=auto
==============================================================================
--- polly/trunk/test/ScopInfo/error-blocks-1.ll (added)
+++ polly/trunk/test/ScopInfo/error-blocks-1.ll Fri Apr  8 05:26:39 2016
@@ -0,0 +1,72 @@
+; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
+;
+; CHECK:         Context:
+; CHECK-NEXT:    [N] -> {  : -2147483648 <= N <= 2147483647 }
+; CHECK-NEXT:    Assumed Context:
+; CHECK-NEXT:    [N] -> {  :  }
+; CHECK-NEXT:    Invalid Context:
+; CHECK-NEXT:    [N] -> {  : N >= 514 }
+;
+; CHECK:         Statements {
+; CHECK-NEXT:    	Stmt_if_end
+; CHECK-NEXT:            Domain :=
+; CHECK-NEXT:                [N] -> { Stmt_if_end[i0] : 0 <= i0 < N };
+; CHECK-NEXT:            Schedule :=
+; CHECK-NEXT:                [N] -> { Stmt_if_end[i0] -> [i0] };
+; CHECK-NEXT:            ReadAccess :=	[Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:                [N] -> { Stmt_if_end[i0] -> MemRef_A[i0] };
+; CHECK-NEXT:            MustWriteAccess :=	[Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:                [N] -> { Stmt_if_end[i0] -> MemRef_A[i0] };
+; CHECK-NEXT:    }
+;
+;    void f();
+;    void g(int *A, int N) {
+;      for (int i = 0; i < N; i++) {
+;        if (i > 512) {
+;          f();
+;          A[i]++;
+;        }
+;        A[i]++;
+;      }
+;    }
+;
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+define void @g(i32* %A, i32 %N) {
+entry:
+  %tmp = sext i32 %N to i64
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
+  %cmp = icmp slt i64 %indvars.iv, %tmp
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  %cmp1 = icmp sgt i64 %indvars.iv, 512
+  br i1 %cmp1, label %if.then, label %if.end
+
+if.then:                                          ; preds = %for.body
+  call void (...) @f() #2
+  %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp12 = load i32, i32* %arrayidx2, align 4
+  %inc2 = add nsw i32 %tmp12, 1
+  store i32 %inc2, i32* %arrayidx2, align 4
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %for.body
+  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp1 = load i32, i32* %arrayidx, align 4
+  %inc = add nsw i32 %tmp1, 1
+  store i32 %inc, i32* %arrayidx, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %if.end
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+}
+
+declare void @f(...)

Added: polly/trunk/test/ScopInfo/error-blocks-3.ll
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/test/ScopInfo/error-blocks-3.ll?rev=265776&view=auto
==============================================================================
--- polly/trunk/test/ScopInfo/error-blocks-3.ll (added)
+++ polly/trunk/test/ScopInfo/error-blocks-3.ll Fri Apr  8 05:26:39 2016
@@ -0,0 +1,80 @@
+; RUN: opt %loadPolly -analyze -polly-scops  -polly-detect-keep-going -polly-allow-nonaffine < %s | FileCheck %s
+;
+; TODO: FIXME: Investigate why "-polly-detect-keep-going" is needed to detect
+;              this SCoP. That flag should not make a difference.
+;
+; CHECK:         Context:
+; CHECK-NEXT:    [N] -> {  : -2147483648 <= N <= 2147483647 }
+; CHECK-NEXT:    Assumed Context:
+; CHECK-NEXT:    [N] -> {  :  }
+; CHECK-NEXT:    Invalid Context:
+; CHECK-NEXT:    [N] -> {  : N >= 514 }
+;
+; CHECK:         Statements {
+; CHECK-NEXT:    	Stmt_if_end3
+; CHECK-NEXT:            Domain :=
+; CHECK-NEXT:                [N] -> { Stmt_if_end3[i0] : 0 <= i0 < N };
+; CHECK-NEXT:            Schedule :=
+; CHECK-NEXT:                [N] -> { Stmt_if_end3[i0] -> [i0] };
+; CHECK-NEXT:            ReadAccess :=	[Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:                [N] -> { Stmt_if_end3[i0] -> MemRef_A[i0] };
+; CHECK-NEXT:            MustWriteAccess :=	[Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:                [N] -> { Stmt_if_end3[i0] -> MemRef_A[i0] };
+; CHECK-NEXT:    }
+;
+;    int f();
+;    void g(int *A, int N) {
+;      for (int i = 0; i < N; i++) {
+;        if (i > 512) {
+;          int v = f();
+;        S:
+;          A[v]++;
+;        }
+;        A[i]++;
+;      }
+;    }
+;
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+define void @g(i32* %A, i32 %N) {
+entry:
+  %tmp = sext i32 %N to i64
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
+  %cmp = icmp slt i64 %indvars.iv, %tmp
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  %cmp1 = icmp sgt i64 %indvars.iv, 512
+  br i1 %cmp1, label %if.then, label %if.end3
+
+if.then:                                          ; preds = %for.body
+  %call = call i32 (...) @f()
+  br label %S
+
+S:                                                ; preds = %if.then
+  %idxprom = sext i32 %call to i64
+  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom
+  %tmp1 = load i32, i32* %arrayidx, align 4
+  %inc = add nsw i32 %tmp1, 1
+  store i32 %inc, i32* %arrayidx, align 4
+  br label %if.end3
+
+if.end3:                                          ; preds = %if.end, %for.body
+  %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp2 = load i32, i32* %arrayidx5, align 4
+  %inc6 = add nsw i32 %tmp2, 1
+  store i32 %inc6, i32* %arrayidx5, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %if.end3, %if.then2
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+}
+
+declare i32 @f(...)




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