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72a2c0622a
llvm-6502/test/Analysis/DependenceAnalysis/ExactRDIV.ll
Preston Briggs 72a2c0622a Corrects a problem where we reply exclusively of GEPs to drive 
analysis.  Better is to look for cases with useful GEPs and use them
when possible.  When a pair of useful GEPs is not available, use the
raw SCEVs directly. This approach supports better analysis of pointer
dereferencing.

In parallel, all the test cases are updated appropriately.
Cases where we have a store to *B++ can now be analyzed!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168474 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21 23:50:04 +00:00

619 lines
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LLVM
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; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'ExactRDIV.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 < 10; i++)
;; A[4*i + 10] = i;
;; for (long int j = 0; j < 10; j++)
;; *B++ = A[2*j + 1];
define void @rdiv0(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = shl nsw i64 %i.03, 2
%add = add nsw i64 %mul, 10
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc, 10
br i1 %exitcond5, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%mul5 = shl nsw i64 %j.02, 1
%add64 = or i64 %mul5, 1
%arrayidx7 = getelementptr inbounds i32* %A, i64 %add64
%0 = load i32* %arrayidx7, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc9 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc9, 10
br i1 %exitcond, label %for.body4, label %for.end10
for.end10: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i < 5; i++)
;; A[11*i - 45] = i;
;; for (long int j = 0; j < 10; j++)
;; *B++ = A[j];
define void @rdiv1(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = add nsw i64 %mul, -45
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 5
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 10
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; A[11*i - 45] = i;
;; for (long int j = 0; j < 10; j++)
;; *B++ = A[j];
define void @rdiv2(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = add nsw i64 %mul, -45
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 6
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 10
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i < 5; i++)
;; A[11*i - 45] = i;
;; for (long int j = 0; j <= 10; j++)
;; *B++ = A[j];
define void @rdiv3(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = add nsw i64 %mul, -45
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 5
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 11
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; A[11*i - 45] = i;
;; for (long int j = 0; j <= 10; j++)
;; *B++ = A[j];
define void @rdiv4(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - flow!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = add nsw i64 %mul, -45
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 6
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 11
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i < 5; i++)
;; A[-11*i + 45] = i;
;; for (long int j = 0; j < 10; j++)
;; *B++ = A[-j];
define void @rdiv5(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, -11
%add = add nsw i64 %mul, 45
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 5
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%sub = sub nsw i64 0, %j.02
%arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 10
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; A[-11*i + 45] = i;
;; for (long int j = 0; j < 10; j++)
;; *B++ = A[-j];
define void @rdiv6(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, -11
%add = add nsw i64 %mul, 45
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 6
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%sub = sub nsw i64 0, %j.02
%arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 10
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i < 5; i++)
;; A[-11*i + 45] = i;
;; for (long int j = 0; j <= 10; j++)
;; *B++ = A[-j];
define void @rdiv7(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, -11
%add = add nsw i64 %mul, 45
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 5
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%sub = sub nsw i64 0, %j.02
%arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 11
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; A[-11*i + 45] = i;
;; for (long int j = 0; j <= 10; j++)
;; *B++ = A[-j];
define void @rdiv8(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.body
; CHECK: da analyze - consistent output [0|<]!
; CHECK: da analyze - flow!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, -11
%add = add nsw i64 %mul, 45
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv, i32* %arrayidx, align 4
%inc = add nsw i64 %i.03, 1
%exitcond4 = icmp ne i64 %inc, 6
br i1 %exitcond4, label %for.body, label %for.body4.preheader
for.body4.preheader: ; preds = %for.body
br label %for.body4
for.body4: ; preds = %for.body4.preheader, %for.body4
%j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
%B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
%sub = sub nsw i64 0, %j.02
%arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
store i32 %0, i32* %B.addr.01, align 4
%inc7 = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc7, 11
br i1 %exitcond, label %for.body4, label %for.end8
for.end8: ; preds = %for.body4
ret void
}
;; for (long int i = 0; i < 5; i++)
;; for (long int j = 0; j < 10; j++) {
;; A[11*i - j] = i;
;; *B++ = A[45];
define void @rdiv9(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.cond1.preheader
; 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: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
%i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
br label %for.body3
for.body3: ; preds = %for.cond1.preheader, %for.body3
%j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
%B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = sub nsw i64 %mul, %j.02
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%arrayidx4 = getelementptr inbounds i32* %A, i64 45
%0 = load i32* %arrayidx4, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
store i32 %0, i32* %B.addr.11, align 4
%inc = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc, 10
br i1 %exitcond, label %for.body3, label %for.inc5
for.inc5: ; preds = %for.body3
%scevgep = getelementptr i32* %B.addr.04, i64 10
%inc6 = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc6, 5
br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
for.end7: ; preds = %for.inc5
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; for (long int j = 0; j < 10; j++) {
;; A[11*i - j] = i;
;; *B++ = A[45];
define void @rdiv10(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.cond1.preheader
; 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: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
%i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
br label %for.body3
for.body3: ; preds = %for.cond1.preheader, %for.body3
%j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
%B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = sub nsw i64 %mul, %j.02
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%arrayidx4 = getelementptr inbounds i32* %A, i64 45
%0 = load i32* %arrayidx4, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
store i32 %0, i32* %B.addr.11, align 4
%inc = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc, 10
br i1 %exitcond, label %for.body3, label %for.inc5
for.inc5: ; preds = %for.body3
%scevgep = getelementptr i32* %B.addr.04, i64 10
%inc6 = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc6, 6
br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
for.end7: ; preds = %for.inc5
ret void
}
;; for (long int i = 0; i < 5; i++)
;; for (long int j = 0; j <= 10; j++) {
;; A[11*i - j] = i;
;; *B++ = A[45];
define void @rdiv11(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.cond1.preheader
; 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: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
%i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
br label %for.body3
for.body3: ; preds = %for.cond1.preheader, %for.body3
%j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
%B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = sub nsw i64 %mul, %j.02
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%arrayidx4 = getelementptr inbounds i32* %A, i64 45
%0 = load i32* %arrayidx4, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
store i32 %0, i32* %B.addr.11, align 4
%inc = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc, 11
br i1 %exitcond, label %for.body3, label %for.inc5
for.inc5: ; preds = %for.body3
%scevgep = getelementptr i32* %B.addr.04, i64 11
%inc6 = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc6, 5
br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
for.end7: ; preds = %for.inc5
ret void
}
;; for (long int i = 0; i <= 5; i++)
;; for (long int j = 0; j <= 10; j++) {
;; A[11*i - j] = i;
;; *B++ = A[45];
define void @rdiv12(i32* %A, i32* %B) nounwind uwtable ssp {
entry:
br label %for.cond1.preheader
; CHECK: da analyze - output [= =|<]!
; CHECK: da analyze - flow [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
%i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
br label %for.body3
for.body3: ; preds = %for.cond1.preheader, %for.body3
%j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
%B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
%conv = trunc i64 %i.03 to i32
%mul = mul nsw i64 %i.03, 11
%sub = sub nsw i64 %mul, %j.02
%arrayidx = getelementptr inbounds i32* %A, i64 %sub
store i32 %conv, i32* %arrayidx, align 4
%arrayidx4 = getelementptr inbounds i32* %A, i64 45
%0 = load i32* %arrayidx4, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
store i32 %0, i32* %B.addr.11, align 4
%inc = add nsw i64 %j.02, 1
%exitcond = icmp ne i64 %inc, 11
br i1 %exitcond, label %for.body3, label %for.inc5
for.inc5: ; preds = %for.body3
%scevgep = getelementptr i32* %B.addr.04, i64 11
%inc6 = add nsw i64 %i.03, 1
%exitcond5 = icmp ne i64 %inc6, 6
br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
for.end7: ; preds = %for.inc5
ret void
}
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