98 lines
4.1 KiB
LLVM
98 lines
4.1 KiB
LLVM
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; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -verify-loop-info < %s -S | FileCheck %s
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; RUN: opt -passes='loop-unroll-and-jam,verify<loops>' -allow-unroll-and-jam < %s -S | FileCheck %s
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; Check that the newly created loops to not fail to be added to LI
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; This test deliberately disables UnJ on the middle loop, performing it instead on the
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; outer of 3 nested loops. The (new) inner loops need to be added to LI.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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define i32 @test() {
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; CHECK-LABEL: test
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; CHECK: for.cond17.preheader:
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; CHECK: br label %for.cond20.preheader
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; CHECK: for.cond20.preheader:
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; CHECK: br label %for.cond23.preheader
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; CHECK: for.cond23.preheader:
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; CHECK: br label %for.body25
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; CHECK: for.body25:
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; CHECK: br i1 [[CMP24:%.*]], label %for.body25, label %for.inc45
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; CHECK: for.inc45:
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; CHECK: br label %for.body25.1
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; CHECK: for.inc48:
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; CHECK: br i1 [[CMP18_3:%.*]], label %for.cond20.preheader, label %for.end50
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; CHECK: for.end50:
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; CHECK: ret i32 0
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; CHECK: for.body25.1:
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; CHECK: br i1 [[CMP24_1:%.*]], label %for.body25.1, label %for.inc45.1
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; CHECK: for.inc45.1:
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; CHECK: br label %for.body25.2
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; CHECK: for.body25.2:
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; CHECK: br i1 [[CMP24_2:%.*]], label %for.body25.2, label %for.inc45.2
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; CHECK: for.inc45.2:
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; CHECK: br label %for.body25.3
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; CHECK: for.body25.3:
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; CHECK: br i1 [[CMP24_3:%.*]], label %for.body25.3, label %for.inc45.3
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; CHECK: for.inc45.3:
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; CHECK: br i1 [[CMP21_3:%.*]], label %for.cond23.preheader, label %for.inc48
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;
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entry:
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%A = alloca [8 x [8 x i32]], align 16
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%B = alloca [8 x [8 x i32]], align 16
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%C = alloca [8 x [8 x i32]], align 16
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br label %for.cond17.preheader
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for.cond17.preheader: ; preds = %for.inc14
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br label %for.cond20.preheader
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for.cond20.preheader: ; preds = %for.cond17.preheader, %for.inc48
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%i.13 = phi i32 [ 0, %for.cond17.preheader ], [ %inc49, %for.inc48 ]
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br label %for.cond23.preheader
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for.cond23.preheader: ; preds = %for.cond20.preheader, %for.inc45
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%j.12 = phi i32 [ 0, %for.cond20.preheader ], [ %inc46, %for.inc45 ]
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br label %for.body25
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for.body25: ; preds = %for.cond23.preheader, %for.body25
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%k.01 = phi i32 [ 0, %for.cond23.preheader ], [ %inc43, %for.body25 ]
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%idxprom26 = zext i32 %i.13 to i64
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%idxprom28 = zext i32 %j.12 to i64
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%arrayidx29 = getelementptr inbounds [8 x [8 x i32]], [8 x [8 x i32]]* %C, i64 0, i64 %idxprom26, i64 %idxprom28
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%0 = load i32, i32* %arrayidx29, align 4
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%idxprom30 = zext i32 %i.13 to i64
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%idxprom32 = zext i32 %k.01 to i64
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%arrayidx33 = getelementptr inbounds [8 x [8 x i32]], [8 x [8 x i32]]* %A, i64 0, i64 %idxprom30, i64 %idxprom32
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%1 = load i32, i32* %arrayidx33, align 4
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%idxprom34 = zext i32 %k.01 to i64
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%idxprom36 = zext i32 %j.12 to i64
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%arrayidx37 = getelementptr inbounds [8 x [8 x i32]], [8 x [8 x i32]]* %B, i64 0, i64 %idxprom34, i64 %idxprom36
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%2 = load i32, i32* %arrayidx37, align 4
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%mul = mul nsw i32 %1, %2
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%add = add nsw i32 %0, %mul
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%idxprom38 = zext i32 %i.13 to i64
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%idxprom40 = zext i32 %j.12 to i64
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%arrayidx41 = getelementptr inbounds [8 x [8 x i32]], [8 x [8 x i32]]* %C, i64 0, i64 %idxprom38, i64 %idxprom40
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store i32 %add, i32* %arrayidx41, align 4
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%inc43 = add nuw nsw i32 %k.01, 1
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%cmp24 = icmp ult i32 %k.01, 7
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br i1 %cmp24, label %for.body25, label %for.inc45
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for.inc45: ; preds = %for.body25
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%inc46 = add nuw nsw i32 %j.12, 1
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%cmp21 = icmp ult i32 %j.12, 7
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br i1 %cmp21, label %for.cond23.preheader, label %for.inc48, !llvm.loop !7
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for.inc48: ; preds = %for.inc45
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%inc49 = add nuw nsw i32 %i.13, 1
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%cmp18 = icmp ult i32 %i.13, 7
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br i1 %cmp18, label %for.cond20.preheader, label %for.end50, !llvm.loop !5
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for.end50: ; preds = %for.inc48
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ret i32 0
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}
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!5 = distinct !{!5, !6}
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!6 = !{!"llvm.loop.unroll_and_jam.count", i32 4}
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!7 = distinct !{!7, !8}
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!8 = !{!"llvm.loop.unroll_and_jam.disable"}
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