xref: /aosp_15_r20/external/llvm/test/Analysis/DependenceAnalysis/Invariant.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Test for a bug, which caused an assert when an invalid
4*9880d681SAndroid Build Coastguard Worker; SCEVAddRecExpr is created in addToCoefficient.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; CHECK: da analyze - consistent input [S 0]!
7*9880d681SAndroid Build Coastguard Worker; CHECK: da analyze - input [* 0|<]!
8*9880d681SAndroid Build Coastguard Worker; CHECK: da analyze - none!
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine float @foo(float %g, [40 x float]* %rr) nounwind {
11*9880d681SAndroid Build Coastguard Workerentry:
12*9880d681SAndroid Build Coastguard Worker  br label %for.cond1.preheader
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerfor.cond1.preheader:
15*9880d681SAndroid Build Coastguard Worker  %i.04 = phi i32 [ 0, %entry ], [ %add10, %for.inc9 ]
16*9880d681SAndroid Build Coastguard Worker  %res.03 = phi float [ 0.000000e+00, %entry ], [ %add.res.1, %for.inc9 ]
17*9880d681SAndroid Build Coastguard Worker  br label %for.body3
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Workerfor.body3:
20*9880d681SAndroid Build Coastguard Worker  %j.02 = phi i32 [ 0, %for.cond1.preheader ], [ %add8, %for.body3 ]
21*9880d681SAndroid Build Coastguard Worker  %res.11 = phi float [ %res.03, %for.cond1.preheader ], [ %add.res.1, %for.body3 ]
22*9880d681SAndroid Build Coastguard Worker  %arrayidx4 = getelementptr inbounds [40 x float], [40 x float]* %rr, i32 %j.02, i32 %j.02
23*9880d681SAndroid Build Coastguard Worker  %0 = load float, float* %arrayidx4, align 4
24*9880d681SAndroid Build Coastguard Worker  %arrayidx6 = getelementptr inbounds [40 x float], [40 x float]* %rr, i32 %i.04, i32 %j.02
25*9880d681SAndroid Build Coastguard Worker  %1 = load float, float* %arrayidx6, align 4
26*9880d681SAndroid Build Coastguard Worker  %add = fadd float %0, %1
27*9880d681SAndroid Build Coastguard Worker  %cmp7 = fcmp ogt float %add, %g
28*9880d681SAndroid Build Coastguard Worker  %add.res.1 = select i1 %cmp7, float %add, float %res.11
29*9880d681SAndroid Build Coastguard Worker  %add8 = add nsw i32 %j.02, 5
30*9880d681SAndroid Build Coastguard Worker  %cmp2 = icmp slt i32 %add8, 40
31*9880d681SAndroid Build Coastguard Worker  br i1 %cmp2, label %for.body3, label %for.inc9
32*9880d681SAndroid Build Coastguard Worker
33*9880d681SAndroid Build Coastguard Workerfor.inc9:
34*9880d681SAndroid Build Coastguard Worker  %add10 = add nsw i32 %i.04, 5
35*9880d681SAndroid Build Coastguard Worker  %cmp = icmp slt i32 %add10, 40
36*9880d681SAndroid Build Coastguard Worker  br i1 %cmp, label %for.cond1.preheader, label %for.end11
37*9880d681SAndroid Build Coastguard Worker
38*9880d681SAndroid Build Coastguard Workerfor.end11:
39*9880d681SAndroid Build Coastguard Worker  ret float %add.res.1
40*9880d681SAndroid Build Coastguard Worker}
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