forked from OSchip/llvm-project
87 lines
3.3 KiB
LLVM
87 lines
3.3 KiB
LLVM
; 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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@B = common global [100 x i32] zeroinitializer
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;; for(int i=0;i<N;i++)
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;; for(int j=1;j<N;j++)
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;; A[j][i] = A[j][i]+k;
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define void @interchange_01(i32 %k, i32 %N) {
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entry:
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%cmp21 = icmp sgt i32 %N, 0
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br i1 %cmp21, label %for.cond1.preheader.lr.ph, label %for.end12
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for.cond1.preheader.lr.ph:
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%cmp219 = icmp sgt i32 %N, 1
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%0 = add i32 %N, -1
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br label %for.cond1.preheader
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for.cond1.preheader:
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%indvars.iv23 = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next24, %for.inc10 ]
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br i1 %cmp219, label %for.body3, label %for.inc10
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for.body3:
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body3 ], [ 1, %for.cond1.preheader ]
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%arrayidx5 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* @A, i64 0, i64 %indvars.iv, i64 %indvars.iv23
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%1 = load i32, i32* %arrayidx5
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%add = add nsw i32 %1, %k
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store i32 %add, i32* %arrayidx5
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %0
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br i1 %exitcond, label %for.inc10, label %for.body3
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for.inc10:
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%indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1
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%lftr.wideiv25 = trunc i64 %indvars.iv23 to i32
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%exitcond26 = icmp eq i32 %lftr.wideiv25, %0
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br i1 %exitcond26, label %for.end12, label %for.cond1.preheader
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for.end12:
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ret void
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}
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; CHECK-LABEL: @interchange_01
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; CHECK: entry:
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; CHECK: %cmp21 = icmp sgt i32 %N, 0
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; CHECK: br i1 %cmp21, label %for.body3.preheader, label %for.end12
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; CHECK: for.cond1.preheader.lr.ph:
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; CHECK: br label %for.cond1.preheader
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; CHECK: for.cond1.preheader:
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; CHECK: %indvars.iv23 = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next24, %for.inc10 ]
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; CHECK: br i1 %cmp219, label %for.body3.split1, label %for.end12.loopexit
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; CHECK: for.body3.preheader:
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; CHECK: %cmp219 = icmp sgt i32 %N, 1
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; CHECK: %0 = add i32 %N, -1
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; CHECK: br label %for.body3
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; CHECK: for.body3:
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; CHECK: %indvars.iv = phi i64 [ %indvars.iv.next, %for.body3.split ], [ 1, %for.body3.preheader ]
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; CHECK: br label %for.cond1.preheader.lr.ph
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; CHECK: for.body3.split1:
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; CHECK: %arrayidx5 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* @A, i64 0, i64 %indvars.iv, i64 %indvars.iv23
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; CHECK: %1 = load i32, i32* %arrayidx5
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; CHECK: %add = add nsw i32 %1, %k
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; CHECK: store i32 %add, i32* %arrayidx5
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; CHECK: br label %for.inc10.loopexit
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; CHECK: for.body3.split:
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; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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; CHECK: %lftr.wideiv = trunc i64 %indvars.iv to i32
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; CHECK: %exitcond = icmp eq i32 %lftr.wideiv, %0
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; CHECK: br i1 %exitcond, label %for.end12.loopexit, label %for.body3
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; CHECK: for.inc10.loopexit:
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; CHECK: br label %for.inc10
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; CHECK: for.inc10:
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; CHECK: %indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1
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; CHECK: %lftr.wideiv25 = trunc i64 %indvars.iv23 to i32
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; CHECK: %exitcond26 = icmp eq i32 %lftr.wideiv25, %0
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; CHECK: br i1 %exitcond26, label %for.body3.split, label %for.cond1.preheader
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; CHECK: for.end12.loopexit:
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; CHECK: br label %for.end12
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; CHECK: for.end12:
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; CHECK: ret void
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