87 lines
3.5 KiB
LLVM
87 lines
3.5 KiB
LLVM
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; RUN: opt < %s -basicaa -loop-interchange -S | FileCheck %s
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;; We test the complete .ll for adjustment in outer loop header/latch and inner loop header/latch.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@A = common global [100 x [100 x i32]] zeroinitializer
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;; Test to make sure we can handle output dependencies.
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;;
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;; for (int i = 0; i < 2; ++i)
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;; for(int j = 0; j < 3; ++j) {
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;; A[j][i] = i;
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;; A[j][i+1] = j;
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;; }
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@A10 = local_unnamed_addr global [3 x [3 x i32]] zeroinitializer, align 16
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define void @interchange_10() {
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entry:
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br label %for.cond1.preheader
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for.cond.loopexit: ; preds = %for.body4
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%exitcond28 = icmp ne i64 %indvars.iv.next27, 2
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br i1 %exitcond28, label %for.cond1.preheader, label %for.cond.cleanup
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for.cond1.preheader: ; preds = %for.cond.loopexit, %entry
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%indvars.iv26 = phi i64 [ 0, %entry ], [ %indvars.iv.next27, %for.cond.loopexit ]
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%indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
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br label %for.body4
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for.cond.cleanup: ; preds = %for.cond.loopexit
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ret void
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for.body4: ; preds = %for.body4, %for.cond1.preheader
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%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next, %for.body4 ]
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%arrayidx6 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv26
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%tmp = trunc i64 %indvars.iv26 to i32
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store i32 %tmp, i32* %arrayidx6, align 4
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%arrayidx10 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv.next27
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%tmp1 = trunc i64 %indvars.iv to i32
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store i32 %tmp1, i32* %arrayidx10, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp ne i64 %indvars.iv.next, 3
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br i1 %exitcond, label %for.body4, label %for.cond.loopexit
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}
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; CHECK-LABEL: @interchange_10
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; CHECK: entry:
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; CHECK: br label %for.body4.preheader
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; CHECK: for.cond1.preheader.preheader:
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; CHECK: br label %for.cond1.preheader
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; CHECK: for.cond.loopexit:
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; CHECK: %exitcond28 = icmp ne i64 %indvars.iv.next27, 2
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; CHECK: br i1 %exitcond28, label %for.cond1.preheader, label %for.body4.split
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; CHECK: for.cond1.preheader:
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; CHECK: %indvars.iv26 = phi i64 [ %indvars.iv.next27, %for.cond.loopexit ], [ 0, %for.cond1.preheader.preheader ]
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; CHECK: %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
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; CHECK: br label %for.body4.split1
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; CHECK: for.body4.preheader:
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; CHECK: br label %for.body4
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; CHECK: for.cond.cleanup:
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; CHECK: ret void
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; CHECK: for.body4:
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; CHECK: %indvars.iv = phi i64 [ %indvars.iv.next, %for.body4.split ], [ 0, %for.body4.preheader ]
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; CHECK: br label %for.cond1.preheader.preheader
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; CHECK: for.body4.split1:
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; CHECK: %arrayidx6 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv26
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; CHECK: %tmp = trunc i64 %indvars.iv26 to i32
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; CHECK: store i32 %tmp, i32* %arrayidx6, align 4
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; CHECK: %arrayidx10 = getelementptr inbounds [3 x [3 x i32]], [3 x [3 x i32]]* @A10, i64 0, i64 %indvars.iv, i64 %indvars.iv.next27
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; CHECK: %tmp1 = trunc i64 %indvars.iv to i32
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; CHECK: store i32 %tmp1, i32* %arrayidx10, align 4
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; CHECK: br label %for.cond.loopexit
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; CHECK: for.body4.split:
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; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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; CHECK: %exitcond = icmp ne i64 %indvars.iv.next, 3
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; CHECK: br i1 %exitcond, label %for.body4, label %for.cond.cleanup
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