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llvm-mirror/test/Analysis/DependenceAnalysis/Preliminary.ll
Preston Briggs f15c406c47 Modified depends() to recognize that when all levels are "=" and 
there's no possible loo-independent dependence, then there's no
dependence.

Updated all test result appropriately.

llvm-svn: 168719
2012-11-27 19:12:26 +00:00

700 lines
28 KiB
LLVM
Raw Blame History

; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'Preliminary.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"
;;int p0(int n, int *A, int *B) {
;; A[0] = n;
;; return B[1];
define i32 @p0(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
entry:
store i32 %n, i32* %A, align 4
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
%arrayidx1 = getelementptr inbounds i32* %B, i64 1
%0 = load i32* %arrayidx1, align 4
ret i32 %0
}
;;int p1(int n, int *restrict A, int *restrict B) {
;; A[0] = n;
;; return B[1];
define i32 @p1(i32 %n, i32* noalias %A, i32* noalias %B) nounwind uwtable ssp {
entry:
store i32 %n, i32* %A, align 4
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - none!
%arrayidx1 = getelementptr inbounds i32* %B, i64 1
%0 = load i32* %arrayidx1, align 4
ret i32 %0
}
;; for (long int i = 0; i < n; i++) {
;; for (long int j = 0; j < n; j++) {
;; for (long int k = 0; k < n; k++) {
;; A[i][j][k] = i;
;; }
;; for (long int k = 0; k < n; k++) {
;; *B++ = A[i + 3][j + 2][k + 1];
define void @p2(i64 %n, [100 x [100 x i64]]* %A, i64* %B) nounwind uwtable ssp {
entry:
%cmp10 = icmp sgt i64 %n, 0
br i1 %cmp10, label %for.cond1.preheader.preheader, label %for.end26
; CHECK: da analyze - none!
; CHECK: da analyze - flow [-3 -2]!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; 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.inc24
%B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %for.cond1.preheader.preheader ]
%i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %for.cond1.preheader.preheader ]
%cmp26 = icmp sgt i64 %n, 0
br i1 %cmp26, label %for.cond4.preheader.preheader, label %for.inc24
for.cond4.preheader.preheader: ; preds = %for.cond1.preheader
br label %for.cond4.preheader
for.cond4.preheader: ; preds = %for.cond4.preheader.preheader, %for.inc21
%B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond4.preheader.preheader ]
%j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond4.preheader.preheader ]
%cmp51 = icmp sgt i64 %n, 0
br i1 %cmp51, label %for.body6.preheader, label %for.cond10.loopexit
for.body6.preheader: ; preds = %for.cond4.preheader
br label %for.body6
for.body6: ; preds = %for.body6.preheader, %for.body6
%k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.body6.preheader ]
%arrayidx8 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %i.011, i64 %j.07, i64 %k.02
store i64 %i.011, i64* %arrayidx8, align 8
%inc = add nsw i64 %k.02, 1
%exitcond13 = icmp ne i64 %inc, %n
br i1 %exitcond13, label %for.body6, label %for.cond10.loopexit.loopexit
for.cond10.loopexit.loopexit: ; preds = %for.body6
br label %for.cond10.loopexit
for.cond10.loopexit: ; preds = %for.cond10.loopexit.loopexit, %for.cond4.preheader
%cmp113 = icmp sgt i64 %n, 0
br i1 %cmp113, label %for.body12.preheader, label %for.inc21
for.body12.preheader: ; preds = %for.cond10.loopexit
br label %for.body12
for.body12: ; preds = %for.body12.preheader, %for.body12
%k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.body12.preheader ]
%B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.body12.preheader ]
%add = add nsw i64 %k9.05, 1
%add13 = add nsw i64 %j.07, 2
%add14 = add nsw i64 %i.011, 3
%arrayidx17 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %add14, i64 %add13, i64 %add
%0 = load i64* %arrayidx17, align 8
%incdec.ptr = getelementptr inbounds i64* %B.addr.24, i64 1
store i64 %0, i64* %B.addr.24, align 8
%inc19 = add nsw i64 %k9.05, 1
%exitcond = icmp ne i64 %inc19, %n
br i1 %exitcond, label %for.body12, label %for.inc21.loopexit
for.inc21.loopexit: ; preds = %for.body12
%scevgep = getelementptr i64* %B.addr.18, i64 %n
br label %for.inc21
for.inc21: ; preds = %for.inc21.loopexit, %for.cond10.loopexit
%B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %scevgep, %for.inc21.loopexit ]
%inc22 = add nsw i64 %j.07, 1
%exitcond14 = icmp ne i64 %inc22, %n
br i1 %exitcond14, label %for.cond4.preheader, label %for.inc24.loopexit
for.inc24.loopexit: ; preds = %for.inc21
%B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc21 ]
br label %for.inc24
for.inc24: ; preds = %for.inc24.loopexit, %for.cond1.preheader
%B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc24.loopexit ]
%inc25 = add nsw i64 %i.011, 1
%exitcond15 = icmp ne i64 %inc25, %n
br i1 %exitcond15, label %for.cond1.preheader, label %for.end26.loopexit
for.end26.loopexit: ; preds = %for.inc24
br label %for.end26
for.end26: ; preds = %for.end26.loopexit, %entry
ret void
}
;; for (long int i = 0; i < n; i++)
;; for (long int j = 0; j < n; j++)
;; for (long int k = 0; k < n; k++)
;; for (long int l = 0; l < n; l++)
;; for (long int m = 0; m < n; m++)
;; for (long int o = 0; o < n; o++)
;; for (long int p = 0; p < n; p++)
;; for (long int q = 0; q < n; q++)
;; for (long int r = 0; r < n; r++)
;; for (long int s = 0; s < n; s++)
;; for (long int u = 0; u < n; u++)
;; for (long int t = 0; t < n; t++) {
;; A[i - 3] [j] [2] [k-1] [2*l + 1] [m] [p + q] [r + s] = i;
;; *B++ = A[i + 3] [2] [u] [1-k] [3*l - 1] [o] [1 + n] [t + 2];
define void @p3(i64 %n, [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64* %B) nounwind uwtable ssp {
entry:
%cmp44 = icmp sgt i64 %n, 0
br i1 %cmp44, label %for.cond1.preheader.preheader, label %for.end90
; CHECK: da analyze - output [0 0 0 0 0 S * * * * S S]!
; CHECK: da analyze - flow [-6 * * => * * * * * * * *] splitable!
; CHECK: da analyze - split level = 3, iteration = 1!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 S 0 0 S 0 S S S S 0 0]!
; 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.inc88
%B.addr.046 = phi i64* [ %B.addr.1.lcssa, %for.inc88 ], [ %B, %for.cond1.preheader.preheader ]
%i.045 = phi i64 [ %inc89, %for.inc88 ], [ 0, %for.cond1.preheader.preheader ]
%cmp240 = icmp sgt i64 %n, 0
br i1 %cmp240, label %for.cond4.preheader.preheader, label %for.inc88
for.cond4.preheader.preheader: ; preds = %for.cond1.preheader
br label %for.cond4.preheader
for.cond4.preheader: ; preds = %for.cond4.preheader.preheader, %for.inc85
%B.addr.142 = phi i64* [ %B.addr.2.lcssa, %for.inc85 ], [ %B.addr.046, %for.cond4.preheader.preheader ]
%j.041 = phi i64 [ %inc86, %for.inc85 ], [ 0, %for.cond4.preheader.preheader ]
%cmp536 = icmp sgt i64 %n, 0
br i1 %cmp536, label %for.cond7.preheader.preheader, label %for.inc85
for.cond7.preheader.preheader: ; preds = %for.cond4.preheader
br label %for.cond7.preheader
for.cond7.preheader: ; preds = %for.cond7.preheader.preheader, %for.inc82
%B.addr.238 = phi i64* [ %B.addr.3.lcssa, %for.inc82 ], [ %B.addr.142, %for.cond7.preheader.preheader ]
%k.037 = phi i64 [ %inc83, %for.inc82 ], [ 0, %for.cond7.preheader.preheader ]
%cmp832 = icmp sgt i64 %n, 0
br i1 %cmp832, label %for.cond10.preheader.preheader, label %for.inc82
for.cond10.preheader.preheader: ; preds = %for.cond7.preheader
br label %for.cond10.preheader
for.cond10.preheader: ; preds = %for.cond10.preheader.preheader, %for.inc79
%B.addr.334 = phi i64* [ %B.addr.4.lcssa, %for.inc79 ], [ %B.addr.238, %for.cond10.preheader.preheader ]
%l.033 = phi i64 [ %inc80, %for.inc79 ], [ 0, %for.cond10.preheader.preheader ]
%cmp1128 = icmp sgt i64 %n, 0
br i1 %cmp1128, label %for.cond13.preheader.preheader, label %for.inc79
for.cond13.preheader.preheader: ; preds = %for.cond10.preheader
br label %for.cond13.preheader
for.cond13.preheader: ; preds = %for.cond13.preheader.preheader, %for.inc76
%B.addr.430 = phi i64* [ %B.addr.5.lcssa, %for.inc76 ], [ %B.addr.334, %for.cond13.preheader.preheader ]
%m.029 = phi i64 [ %inc77, %for.inc76 ], [ 0, %for.cond13.preheader.preheader ]
%cmp1424 = icmp sgt i64 %n, 0
br i1 %cmp1424, label %for.cond16.preheader.preheader, label %for.inc76
for.cond16.preheader.preheader: ; preds = %for.cond13.preheader
br label %for.cond16.preheader
for.cond16.preheader: ; preds = %for.cond16.preheader.preheader, %for.inc73
%B.addr.526 = phi i64* [ %B.addr.6.lcssa, %for.inc73 ], [ %B.addr.430, %for.cond16.preheader.preheader ]
%o.025 = phi i64 [ %inc74, %for.inc73 ], [ 0, %for.cond16.preheader.preheader ]
%cmp1720 = icmp sgt i64 %n, 0
br i1 %cmp1720, label %for.cond19.preheader.preheader, label %for.inc73
for.cond19.preheader.preheader: ; preds = %for.cond16.preheader
br label %for.cond19.preheader
for.cond19.preheader: ; preds = %for.cond19.preheader.preheader, %for.inc70
%B.addr.622 = phi i64* [ %B.addr.7.lcssa, %for.inc70 ], [ %B.addr.526, %for.cond19.preheader.preheader ]
%p.021 = phi i64 [ %inc71, %for.inc70 ], [ 0, %for.cond19.preheader.preheader ]
%cmp2016 = icmp sgt i64 %n, 0
br i1 %cmp2016, label %for.cond22.preheader.preheader, label %for.inc70
for.cond22.preheader.preheader: ; preds = %for.cond19.preheader
br label %for.cond22.preheader
for.cond22.preheader: ; preds = %for.cond22.preheader.preheader, %for.inc67
%B.addr.718 = phi i64* [ %B.addr.8.lcssa, %for.inc67 ], [ %B.addr.622, %for.cond22.preheader.preheader ]
%q.017 = phi i64 [ %inc68, %for.inc67 ], [ 0, %for.cond22.preheader.preheader ]
%cmp2312 = icmp sgt i64 %n, 0
br i1 %cmp2312, label %for.cond25.preheader.preheader, label %for.inc67
for.cond25.preheader.preheader: ; preds = %for.cond22.preheader
br label %for.cond25.preheader
for.cond25.preheader: ; preds = %for.cond25.preheader.preheader, %for.inc64
%B.addr.814 = phi i64* [ %B.addr.9.lcssa, %for.inc64 ], [ %B.addr.718, %for.cond25.preheader.preheader ]
%r.013 = phi i64 [ %inc65, %for.inc64 ], [ 0, %for.cond25.preheader.preheader ]
%cmp268 = icmp sgt i64 %n, 0
br i1 %cmp268, label %for.cond28.preheader.preheader, label %for.inc64
for.cond28.preheader.preheader: ; preds = %for.cond25.preheader
br label %for.cond28.preheader
for.cond28.preheader: ; preds = %for.cond28.preheader.preheader, %for.inc61
%B.addr.910 = phi i64* [ %B.addr.10.lcssa, %for.inc61 ], [ %B.addr.814, %for.cond28.preheader.preheader ]
%s.09 = phi i64 [ %inc62, %for.inc61 ], [ 0, %for.cond28.preheader.preheader ]
%cmp294 = icmp sgt i64 %n, 0
br i1 %cmp294, label %for.cond31.preheader.preheader, label %for.inc61
for.cond31.preheader.preheader: ; preds = %for.cond28.preheader
br label %for.cond31.preheader
for.cond31.preheader: ; preds = %for.cond31.preheader.preheader, %for.inc58
%u.06 = phi i64 [ %inc59, %for.inc58 ], [ 0, %for.cond31.preheader.preheader ]
%B.addr.105 = phi i64* [ %B.addr.11.lcssa, %for.inc58 ], [ %B.addr.910, %for.cond31.preheader.preheader ]
%cmp321 = icmp sgt i64 %n, 0
br i1 %cmp321, label %for.body33.preheader, label %for.inc58
for.body33.preheader: ; preds = %for.cond31.preheader
br label %for.body33
for.body33: ; preds = %for.body33.preheader, %for.body33
%t.03 = phi i64 [ %inc, %for.body33 ], [ 0, %for.body33.preheader ]
%B.addr.112 = phi i64* [ %incdec.ptr, %for.body33 ], [ %B.addr.105, %for.body33.preheader ]
%add = add nsw i64 %r.013, %s.09
%add34 = add nsw i64 %p.021, %q.017
%mul = shl nsw i64 %l.033, 1
%add3547 = or i64 %mul, 1
%sub = add nsw i64 %k.037, -1
%sub36 = add nsw i64 %i.045, -3
%arrayidx43 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %sub36, i64 %j.041, i64 2, i64 %sub, i64 %add3547, i64 %m.029, i64 %add34, i64 %add
store i64 %i.045, i64* %arrayidx43, align 8
%add44 = add nsw i64 %t.03, 2
%add45 = add nsw i64 %n, 1
%mul46 = mul nsw i64 %l.033, 3
%sub47 = add nsw i64 %mul46, -1
%sub48 = sub nsw i64 1, %k.037
%add49 = add nsw i64 %i.045, 3
%arrayidx57 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %add49, i64 2, i64 %u.06, i64 %sub48, i64 %sub47, i64 %o.025, i64 %add45, i64 %add44
%0 = load i64* %arrayidx57, align 8
%incdec.ptr = getelementptr inbounds i64* %B.addr.112, i64 1
store i64 %0, i64* %B.addr.112, align 8
%inc = add nsw i64 %t.03, 1
%exitcond = icmp ne i64 %inc, %n
br i1 %exitcond, label %for.body33, label %for.inc58.loopexit
for.inc58.loopexit: ; preds = %for.body33
%scevgep = getelementptr i64* %B.addr.105, i64 %n
br label %for.inc58
for.inc58: ; preds = %for.inc58.loopexit, %for.cond31.preheader
%B.addr.11.lcssa = phi i64* [ %B.addr.105, %for.cond31.preheader ], [ %scevgep, %for.inc58.loopexit ]
%inc59 = add nsw i64 %u.06, 1
%exitcond48 = icmp ne i64 %inc59, %n
br i1 %exitcond48, label %for.cond31.preheader, label %for.inc61.loopexit
for.inc61.loopexit: ; preds = %for.inc58
%B.addr.11.lcssa.lcssa = phi i64* [ %B.addr.11.lcssa, %for.inc58 ]
br label %for.inc61
for.inc61: ; preds = %for.inc61.loopexit, %for.cond28.preheader
%B.addr.10.lcssa = phi i64* [ %B.addr.910, %for.cond28.preheader ], [ %B.addr.11.lcssa.lcssa, %for.inc61.loopexit ]
%inc62 = add nsw i64 %s.09, 1
%exitcond49 = icmp ne i64 %inc62, %n
br i1 %exitcond49, label %for.cond28.preheader, label %for.inc64.loopexit
for.inc64.loopexit: ; preds = %for.inc61
%B.addr.10.lcssa.lcssa = phi i64* [ %B.addr.10.lcssa, %for.inc61 ]
br label %for.inc64
for.inc64: ; preds = %for.inc64.loopexit, %for.cond25.preheader
%B.addr.9.lcssa = phi i64* [ %B.addr.814, %for.cond25.preheader ], [ %B.addr.10.lcssa.lcssa, %for.inc64.loopexit ]
%inc65 = add nsw i64 %r.013, 1
%exitcond50 = icmp ne i64 %inc65, %n
br i1 %exitcond50, label %for.cond25.preheader, label %for.inc67.loopexit
for.inc67.loopexit: ; preds = %for.inc64
%B.addr.9.lcssa.lcssa = phi i64* [ %B.addr.9.lcssa, %for.inc64 ]
br label %for.inc67
for.inc67: ; preds = %for.inc67.loopexit, %for.cond22.preheader
%B.addr.8.lcssa = phi i64* [ %B.addr.718, %for.cond22.preheader ], [ %B.addr.9.lcssa.lcssa, %for.inc67.loopexit ]
%inc68 = add nsw i64 %q.017, 1
%exitcond51 = icmp ne i64 %inc68, %n
br i1 %exitcond51, label %for.cond22.preheader, label %for.inc70.loopexit
for.inc70.loopexit: ; preds = %for.inc67
%B.addr.8.lcssa.lcssa = phi i64* [ %B.addr.8.lcssa, %for.inc67 ]
br label %for.inc70
for.inc70: ; preds = %for.inc70.loopexit, %for.cond19.preheader
%B.addr.7.lcssa = phi i64* [ %B.addr.622, %for.cond19.preheader ], [ %B.addr.8.lcssa.lcssa, %for.inc70.loopexit ]
%inc71 = add nsw i64 %p.021, 1
%exitcond52 = icmp ne i64 %inc71, %n
br i1 %exitcond52, label %for.cond19.preheader, label %for.inc73.loopexit
for.inc73.loopexit: ; preds = %for.inc70
%B.addr.7.lcssa.lcssa = phi i64* [ %B.addr.7.lcssa, %for.inc70 ]
br label %for.inc73
for.inc73: ; preds = %for.inc73.loopexit, %for.cond16.preheader
%B.addr.6.lcssa = phi i64* [ %B.addr.526, %for.cond16.preheader ], [ %B.addr.7.lcssa.lcssa, %for.inc73.loopexit ]
%inc74 = add nsw i64 %o.025, 1
%exitcond53 = icmp ne i64 %inc74, %n
br i1 %exitcond53, label %for.cond16.preheader, label %for.inc76.loopexit
for.inc76.loopexit: ; preds = %for.inc73
%B.addr.6.lcssa.lcssa = phi i64* [ %B.addr.6.lcssa, %for.inc73 ]
br label %for.inc76
for.inc76: ; preds = %for.inc76.loopexit, %for.cond13.preheader
%B.addr.5.lcssa = phi i64* [ %B.addr.430, %for.cond13.preheader ], [ %B.addr.6.lcssa.lcssa, %for.inc76.loopexit ]
%inc77 = add nsw i64 %m.029, 1
%exitcond54 = icmp ne i64 %inc77, %n
br i1 %exitcond54, label %for.cond13.preheader, label %for.inc79.loopexit
for.inc79.loopexit: ; preds = %for.inc76
%B.addr.5.lcssa.lcssa = phi i64* [ %B.addr.5.lcssa, %for.inc76 ]
br label %for.inc79
for.inc79: ; preds = %for.inc79.loopexit, %for.cond10.preheader
%B.addr.4.lcssa = phi i64* [ %B.addr.334, %for.cond10.preheader ], [ %B.addr.5.lcssa.lcssa, %for.inc79.loopexit ]
%inc80 = add nsw i64 %l.033, 1
%exitcond55 = icmp ne i64 %inc80, %n
br i1 %exitcond55, label %for.cond10.preheader, label %for.inc82.loopexit
for.inc82.loopexit: ; preds = %for.inc79
%B.addr.4.lcssa.lcssa = phi i64* [ %B.addr.4.lcssa, %for.inc79 ]
br label %for.inc82
for.inc82: ; preds = %for.inc82.loopexit, %for.cond7.preheader
%B.addr.3.lcssa = phi i64* [ %B.addr.238, %for.cond7.preheader ], [ %B.addr.4.lcssa.lcssa, %for.inc82.loopexit ]
%inc83 = add nsw i64 %k.037, 1
%exitcond56 = icmp ne i64 %inc83, %n
br i1 %exitcond56, label %for.cond7.preheader, label %for.inc85.loopexit
for.inc85.loopexit: ; preds = %for.inc82
%B.addr.3.lcssa.lcssa = phi i64* [ %B.addr.3.lcssa, %for.inc82 ]
br label %for.inc85
for.inc85: ; preds = %for.inc85.loopexit, %for.cond4.preheader
%B.addr.2.lcssa = phi i64* [ %B.addr.142, %for.cond4.preheader ], [ %B.addr.3.lcssa.lcssa, %for.inc85.loopexit ]
%inc86 = add nsw i64 %j.041, 1
%exitcond57 = icmp ne i64 %inc86, %n
br i1 %exitcond57, label %for.cond4.preheader, label %for.inc88.loopexit
for.inc88.loopexit: ; preds = %for.inc85
%B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc85 ]
br label %for.inc88
for.inc88: ; preds = %for.inc88.loopexit, %for.cond1.preheader
%B.addr.1.lcssa = phi i64* [ %B.addr.046, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc88.loopexit ]
%inc89 = add nsw i64 %i.045, 1
%exitcond58 = icmp ne i64 %inc89, %n
br i1 %exitcond58, label %for.cond1.preheader, label %for.end90.loopexit
for.end90.loopexit: ; preds = %for.inc88
br label %for.end90
for.end90: ; preds = %for.end90.loopexit, %entry
ret void
}
;;void p4(int *A, int *B, long int n) {
;; for (char i = 0; i < n; i++) {
;; A[i + 2] = i;
;; *B++ = A[i];
define void @p4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
%cmp1 = icmp sgt i64 %n, 0
br i1 %cmp1, label %for.body.preheader, label %for.end
; CHECK: da analyze - output [*]!
; CHECK: da analyze - flow [*|<]!
; 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.body: ; preds = %for.body.preheader, %for.body
%i.03 = phi i8 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%conv2 = sext i8 %i.03 to i32
%conv3 = sext i8 %i.03 to i64
%add = add i64 %conv3, 2
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv2, i32* %arrayidx, align 4
%idxprom4 = sext i8 %i.03 to i64
%arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc = add i8 %i.03, 1
%conv = sext i8 %inc to i64
%cmp = icmp slt i64 %conv, %n
br i1 %cmp, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
;;void p5(int *A, int *B, long int n) {
;; for (short i = 0; i < n; i++) {
;; A[i + 2] = i;
;; *B++ = A[i];
define void @p5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
%cmp1 = icmp sgt i64 %n, 0
br i1 %cmp1, label %for.body.preheader, label %for.end
; CHECK: da analyze - output [*]!
; CHECK: da analyze - flow [*|<]!
; 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.body: ; preds = %for.body.preheader, %for.body
%i.03 = phi i16 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%conv2 = sext i16 %i.03 to i32
%conv3 = sext i16 %i.03 to i64
%add = add i64 %conv3, 2
%arrayidx = getelementptr inbounds i32* %A, i64 %add
store i32 %conv2, i32* %arrayidx, align 4
%idxprom4 = sext i16 %i.03 to i64
%arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4
%0 = load i32* %arrayidx5, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %0, i32* %B.addr.02, align 4
%inc = add i16 %i.03, 1
%conv = sext i16 %inc to i64
%cmp = icmp slt i64 %conv, %n
br i1 %cmp, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
;;void p6(int *A, int *B, long int n) {
;; for (int i = 0; i < n; i++) {
;; A[i + 2] = i;
;; *B++ = A[i];
define void @p6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
entry:
%cmp1 = icmp sgt i64 %n, 0
br i1 %cmp1, label %for.body.preheader, label %for.end
; CHECK: da analyze - none!
; CHECK: da analyze - consistent flow [2]!
; 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.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
%0 = add nsw i64 %indvars.iv, 2
%arrayidx = getelementptr inbounds i32* %A, i64 %0
%1 = trunc i64 %indvars.iv to i32
store i32 %1, i32* %arrayidx, align 4
%arrayidx3 = getelementptr inbounds i32* %A, i64 %indvars.iv
%2 = load i32* %arrayidx3, align 4
%incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
store i32 %2, i32* %B.addr.02, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%exitcond = icmp ne i64 %indvars.iv.next, %n
br i1 %exitcond, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
;;void p7(unsigned *A, unsigned *B, char n) {
;; A[n] = 0;
;; *B = A[n + 1];
define void @p7(i32* %A, i32* %B, i8 signext %n) nounwind uwtable ssp {
entry:
%idxprom = sext i8 %n to i64
%arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
store i32 0, i32* %arrayidx, align 4
%conv = sext i8 %n to i64
%add = add i64 %conv, 1
%arrayidx2 = getelementptr inbounds i32* %A, i64 %add
%0 = load i32* %arrayidx2, align 4
store i32 %0, i32* %B, align 4
ret void
}
;;void p8(unsigned *A, unsigned *B, short n) {
;; A[n] = 0;
;; *B = A[n + 1];
define void @p8(i32* %A, i32* %B, i16 signext %n) nounwind uwtable ssp {
entry:
%idxprom = sext i16 %n to i64
%arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
store i32 0, i32* %arrayidx, align 4
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
%conv = sext i16 %n to i64
%add = add i64 %conv, 1
%arrayidx2 = getelementptr inbounds i32* %A, i64 %add
%0 = load i32* %arrayidx2, align 4
store i32 %0, i32* %B, align 4
ret void
}
;;void p9(unsigned *A, unsigned *B, int n) {
;; A[n] = 0;
;; *B = A[n + 1];
define void @p9(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
store i32 0, i32* %arrayidx, align 4
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
%0 = load i32* %arrayidx2, align 4
store i32 %0, i32* %B, align 4
ret void
}
;;void p10(unsigned *A, unsigned *B, unsigned n) {
;; A[n] = 0;
;; *B = A[n + 1];
define void @p10(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
entry:
%idxprom = zext i32 %n to i64
%arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
store i32 0, i32* %arrayidx, align 4
; CHECK: da analyze - none!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
%add = add i32 %n, 1
%idxprom1 = zext i32 %add to i64
%arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
%0 = load i32* %arrayidx2, align 4
store i32 %0, i32* %B, align 4
ret void
}
;;typedef struct { int v; } S;
;;
;;void f(S *s, unsigned size) {
;; S *i = s, *e = s + size - 1;
;; while (i != e) {
;; *i = *(i + 1);
;; ++i;
%struct.S = type { i32 }
define void @f(%struct.S* %s, i32 %size) nounwind uwtable ssp {
entry:
%idx.ext = zext i32 %size to i64
%add.ptr.sum = add i64 %idx.ext, -1
%add.ptr1 = getelementptr inbounds %struct.S* %s, i64 %add.ptr.sum
%cmp1 = icmp eq i64 %add.ptr.sum, 0
br i1 %cmp1, label %while.end, label %while.body.preheader
; CHECK: da analyze - none!
; CHECK: da analyze - consistent anti [1]!
; CHECK: da analyze - none!
while.body.preheader: ; preds = %entry
br label %while.body
while.body: ; preds = %while.body.preheader, %while.body
%i.02 = phi %struct.S* [ %incdec.ptr, %while.body ], [ %s, %while.body.preheader ]
%0 = getelementptr inbounds %struct.S* %i.02, i64 1, i32 0
%1 = load i32* %0, align 4
%2 = getelementptr inbounds %struct.S* %i.02, i64 0, i32 0
store i32 %1, i32* %2, align 4
%incdec.ptr = getelementptr inbounds %struct.S* %i.02, i64 1
%cmp = icmp eq %struct.S* %incdec.ptr, %add.ptr1
br i1 %cmp, label %while.end.loopexit, label %while.body
while.end.loopexit: ; preds = %while.body
br label %while.end
while.end: ; preds = %while.end.loopexit, %entry
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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