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llvm-6502/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll
Sebastian Pop 430b6eb419 improve dependence analysis testcases 
print the name of the function on which the dependence analysis is performed
such that changes to the testcase are easier to review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194528 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-12 22:47:30 +00:00

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; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'SymbolicRDIV.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"
;; for (long int i = 0; i < n1; i++)
;; A[2*i + n1] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[3*j + 3*n1];
define void @symbolicrdiv0(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv0'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond1.preheader.loopexit: ; preds = %for.body
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.loopexit, %entry
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.end11, label %for.body4.preheader
for.body4.preheader: ; preds = %for.cond1.preheader
br label %for.body4
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%mul = shl nsw i64 %i.05, 1
%add = add i64 %mul, %n1
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.03 = phi i64 [ %inc10, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%mul56 = add i64 %j.03, %n1
%add7 = mul i64 %mul56, 3
%arrayidx8 = getelementptr inbounds i32* %A, i64 %add7
%0 = load i32* %arrayidx8, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc10 = add nsw i64 %j.03, 1
%exitcond7 = icmp ne i64 %inc10, %n2
br i1 %exitcond7, label %for.body4, label %for.end11.loopexit
for.end11.loopexit: ; preds = %for.body4
br label %for.end11
for.end11: ; preds = %for.end11.loopexit, %for.cond1.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; A[2*i + 5*n2] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[3*j + 2*n2];
define void @symbolicrdiv1(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond2.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv1'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond2.preheader.loopexit: ; preds = %for.body
br label %for.cond2.preheader
for.cond2.preheader: ; preds = %for.cond2.preheader.loopexit, %entry
%cmp31 = icmp eq i64 %n2, 0
br i1 %cmp31, label %for.end12, label %for.body5.preheader
for.body5.preheader: ; preds = %for.cond2.preheader
br label %for.body5
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%mul = shl nsw i64 %i.05, 1
%mul1 = mul i64 %n2, 5
%add = add i64 %mul, %mul1
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond2.preheader.loopexit
for.body5: ; preds = %for.body5.preheader, %for.body5
%j.03 = phi i64 [ %inc11, %for.body5 ], [ 0, %for.body5.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body5 ], [ %B, %for.body5.preheader ]
%mul6 = mul nsw i64 %j.03, 3
%mul7 = shl i64 %n2, 1
%add8 = add i64 %mul6, %mul7
%arrayidx9 = getelementptr inbounds i32* %A, i64 %add8
%0 = load i32* %arrayidx9, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc11 = add nsw i64 %j.03, 1
%exitcond6 = icmp ne i64 %inc11, %n2
br i1 %exitcond6, label %for.body5, label %for.end12.loopexit
for.end12.loopexit: ; preds = %for.body5
br label %for.end12
for.end12: ; preds = %for.end12.loopexit, %for.cond2.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; A[2*i - n2] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[-j + 2*n1];
define void @symbolicrdiv2(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv2'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond1.preheader.loopexit: ; preds = %for.body
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.loopexit, %entry
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.end10, label %for.body4.preheader
for.body4.preheader: ; preds = %for.cond1.preheader
br label %for.body4
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%mul = shl nsw i64 %i.05, 1
%sub = sub i64 %mul, %n2
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%mul6 = shl i64 %n1, 1
%add = sub i64 %mul6, %j.03
%arrayidx7 = getelementptr inbounds i32* %A, i64 %add
%0 = load i32* %arrayidx7, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc9 = add nsw i64 %j.03, 1
%exitcond6 = icmp ne i64 %inc9, %n2
br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
for.end10.loopexit: ; preds = %for.body4
br label %for.end10
for.end10: ; preds = %for.end10.loopexit, %for.cond1.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; A[-i + n2] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[j - n1];
define void @symbolicrdiv3(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv3'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond1.preheader.loopexit: ; preds = %for.body
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.loopexit, %entry
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.end9, label %for.body4.preheader
for.body4.preheader: ; preds = %for.cond1.preheader
br label %for.body4
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%add = sub i64 %n2, %i.05
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.03 = phi i64 [ %inc8, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%sub5 = sub i64 %j.03, %n1
%arrayidx6 = getelementptr inbounds i32* %A, i64 %sub5
%0 = load i32* %arrayidx6, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc8 = add nsw i64 %j.03, 1
%exitcond6 = icmp ne i64 %inc8, %n2
br i1 %exitcond6, label %for.body4, label %for.end9.loopexit
for.end9.loopexit: ; preds = %for.body4
br label %for.end9
for.end9: ; preds = %for.end9.loopexit, %for.cond1.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; A[-i + 2*n1] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[-j + n1];
define void @symbolicrdiv4(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv4'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond1.preheader.loopexit: ; preds = %for.body
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.loopexit, %entry
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.end10, label %for.body4.preheader
for.body4.preheader: ; preds = %for.cond1.preheader
br label %for.body4
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%mul = shl i64 %n1, 1
%add = sub i64 %mul, %i.05
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%add6 = sub i64 %n1, %j.03
%arrayidx7 = getelementptr inbounds i32* %A, i64 %add6
%0 = load i32* %arrayidx7, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc9 = add nsw i64 %j.03, 1
%exitcond6 = icmp ne i64 %inc9, %n2
br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
for.end10.loopexit: ; preds = %for.body4
br label %for.end10
for.end10: ; preds = %for.end10.loopexit, %for.cond1.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; A[-i + n2] = i;
;; for (long int j = 0; j < n2; j++)
;; *B++ = A[-j + 2*n2];
define void @symbolicrdiv5(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv5'
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
for.body.preheader: ; preds = %entry
br label %for.body
for.cond1.preheader.loopexit: ; preds = %for.body
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.loopexit, %entry
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.end10, label %for.body4.preheader
for.body4.preheader: ; preds = %for.cond1.preheader
br label %for.body4
for.body: ; preds = %for.body.preheader, %for.body
%i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%conv = trunc i64 %i.05 to i32
%add = sub i64 %n2, %i.05
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.05, 1
%exitcond = icmp ne i64 %inc, %n1
br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%mul = shl i64 %n2, 1
%add6 = sub i64 %mul, %j.03
%arrayidx7 = getelementptr inbounds i32* %A, i64 %add6
%0 = load i32* %arrayidx7, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc9 = add nsw i64 %j.03, 1
%exitcond6 = icmp ne i64 %inc9, %n2
br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
for.end10.loopexit: ; preds = %for.body4
br label %for.end10
for.end10: ; preds = %for.end10.loopexit, %for.cond1.preheader
ret void
}
;; for (long int i = 0; i < n1; i++)
;; for (long int j = 0; j < n2; j++) {
;; A[j -i + n2] = i;
;; *B++ = A[2*n2];
define void @symbolicrdiv6(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
entry:
%cmp4 = icmp eq i64 %n1, 0
br i1 %cmp4, label %for.end7, label %for.cond1.preheader.preheader
; CHECK: 'Dependence Analysis' for function 'symbolicrdiv6'
; CHECK: da analyze - output [* *]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S]!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc5
%B.addr.06 = phi i32* [ %B.addr.1.lcssa, %for.inc5 ], [ %B, %for.cond1.preheader.preheader ]
%i.05 = phi i64 [ %inc6, %for.inc5 ], [ 0, %for.cond1.preheader.preheader ]
%cmp21 = icmp eq i64 %n2, 0
br i1 %cmp21, label %for.inc5, label %for.body3.preheader
for.body3.preheader: ; preds = %for.cond1.preheader
br label %for.body3
for.body3: ; preds = %for.body3.preheader, %for.body3
%j.03 = phi i64 [ %inc, %for.body3 ], [ 0, %for.body3.preheader ]
%B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.06, %for.body3.preheader ]
%conv = trunc i64 %i.05 to i32
%sub = sub nsw i64 %j.03, %i.05
%add = add i64 %sub, %n2
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%mul = shl i64 %n2, 1
%arrayidx4 = getelementptr inbounds i32* %A, i64 %mul
%0 = load i32* %arrayidx4, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
store i32 %0, i32* %B.addr.12, align 4
%inc = add nsw i64 %j.03, 1
%exitcond = icmp ne i64 %inc, %n2
br i1 %exitcond, label %for.body3, label %for.inc5.loopexit
for.inc5.loopexit: ; preds = %for.body3
%scevgep = getelementptr i32* %B.addr.06, i64 %n2
br label %for.inc5
for.inc5: ; preds = %for.inc5.loopexit, %for.cond1.preheader
%B.addr.1.lcssa = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %scevgep, %for.inc5.loopexit ]
%inc6 = add nsw i64 %i.05, 1
%exitcond7 = icmp ne i64 %inc6, %n1
br i1 %exitcond7, label %for.cond1.preheader, label %for.end7.loopexit
for.end7.loopexit: ; preds = %for.inc5
br label %for.end7
for.end7: ; preds = %for.end7.loopexit, %entry
ret void
}
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