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437 lines
14 KiB
LLVM
437 lines
14 KiB
LLVM
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
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; ModuleID = 'StrongSIV.bc'
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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"
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target triple = "x86_64-apple-macosx10.6.0"
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;; for (int i = 0; i < n; i++) {
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;; A[i + 2] = i;
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;; *B++ = A[i];
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define void @strong0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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%cmp1 = icmp sgt i64 %n, 0
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br i1 %cmp1, label %for.body.preheader, label %for.end
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [2]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
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%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
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%0 = add nsw i64 %indvars.iv, 2
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %0
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%1 = trunc i64 %indvars.iv to i32
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store i32 %1, i32* %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%2 = load i32, i32* %arrayidx3, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
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store i32 %2, i32* %B.addr.02, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%exitcond = icmp ne i64 %indvars.iv.next, %n
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br i1 %exitcond, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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;; for (long int i = 0; i < n; i++) {
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;; A[i + 2] = i;
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;; *B++ = A[i];
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define void @strong1(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
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entry:
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%cmp1 = icmp sgt i32 %n, 0
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br i1 %cmp1, label %for.body.preheader, label %for.end
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [2]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body.preheader: ; preds = %entry
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%0 = sext i32 %n to i64
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
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%conv2 = trunc i64 %i.03 to i32
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%add = add nsw i64 %i.03, 2
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv2, i32* %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %i.03
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%1 = load i32, i32* %arrayidx3, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
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store i32 %1, i32* %B.addr.02, align 4
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%inc = add nsw i64 %i.03, 1
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%exitcond = icmp ne i64 %inc, %0
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br i1 %exitcond, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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;; for (long unsigned i = 0; i < n; i++) {
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;; A[i + 2] = i;
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;; *B++ = A[i];
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define void @strong2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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%cmp1 = icmp eq i64 %n, 0
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br i1 %cmp1, label %for.end, label %for.body.preheader
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [2]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
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%conv = trunc i64 %i.03 to i32
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%add = add i64 %i.03, 2
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %i.03
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
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store i32 %0, i32* %B.addr.02, align 4
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%inc = add i64 %i.03, 1
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%exitcond = icmp ne i64 %inc, %n
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br i1 %exitcond, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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;; for (int i = 0; i < n; i++) {
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;; A[i + 2] = i;
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;; *B++ = A[i];
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define void @strong3(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
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entry:
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%cmp1 = icmp sgt i32 %n, 0
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br i1 %cmp1, label %for.body.preheader, label %for.end
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [2]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
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%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
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%0 = add nsw i64 %indvars.iv, 2
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %0
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%1 = trunc i64 %indvars.iv to i32
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store i32 %1, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%2 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
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store i32 %2, i32* %B.addr.02, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp ne i32 %lftr.wideiv, %n
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br i1 %exitcond, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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;; for (long unsigned i = 0; i < 19; i++) {
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;; A[i + 19] = i;
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;; *B++ = A[i];
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define void @strong4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%add = add i64 %i.02, 19
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %i.02
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 19
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 20; i++) {
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;; A[i + 19] = i;
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;; *B++ = A[i];
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define void @strong5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [19]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%add = add i64 %i.02, 19
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %i.02
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 20
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 20; i++) {
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;; A[2*i + 6] = i;
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;; *B++ = A[2*i];
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define void @strong6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [3]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = shl i64 %i.02, 1
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%add = add i64 %mul, 6
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%mul1 = shl i64 %i.02, 1
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %mul1
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 20
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 20; i++) {
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;; A[2*i + 7] = i;
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;; *B++ = A[2*i];
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define void @strong7(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%mul = shl i64 %i.02, 1
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%add = add i64 %mul, 7
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%mul1 = shl i64 %i.02, 1
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %mul1
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 20
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < 20; i++) {
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;; A[i + n] = i;
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;; *B++ = A[i];
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define void @strong8(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [%n|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
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%conv = trunc i64 %i.02 to i32
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%add = add i64 %i.02, %n
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %i.02
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%0 = load i32, i32* %arrayidx1, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
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store i32 %0, i32* %B.addr.01, align 4
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%inc = add i64 %i.02, 1
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%exitcond = icmp ne i64 %inc, 20
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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;; for (long unsigned i = 0; i < n; i++) {
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;; A[i + n] = i;
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;; *B++ = A[i + 2*n];
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define void @strong9(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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%cmp1 = icmp eq i64 %n, 0
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br i1 %cmp1, label %for.end, label %for.body.preheader
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
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%conv = trunc i64 %i.03 to i32
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%add = add i64 %i.03, %n
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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store i32 %conv, i32* %arrayidx, align 4
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%mul = shl i64 %n, 1
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%add1 = add i64 %i.03, %mul
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %add1
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%0 = load i32, i32* %arrayidx2, align 4
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%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.02, i64 1
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store i32 %0, i32* %B.addr.02, align 4
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%inc = add i64 %i.03, 1
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%exitcond = icmp ne i64 %inc, %n
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br i1 %exitcond, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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;; for (long unsigned i = 0; i < 1000; i++) {
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;; A[n*i + 5] = i;
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;; *B++ = A[n*i + 5];
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define void @strong10(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
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entry:
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br label %for.body
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; CHECK: da analyze - none!
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; CHECK: da analyze - consistent flow [0|<]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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for.body: ; preds = %entry, %for.body
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|
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
|
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%B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
|
|
%conv = trunc i64 %i.02 to i32
|
|
%mul = mul i64 %i.02, %n
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|
%add = add i64 %mul, 5
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %add
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|
store i32 %conv, i32* %arrayidx, align 4
|
|
%mul1 = mul i64 %i.02, %n
|
|
%add2 = add i64 %mul1, 5
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|
%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %add2
|
|
%0 = load i32, i32* %arrayidx3, align 4
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %B.addr.01, i64 1
|
|
store i32 %0, i32* %B.addr.01, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, 1000
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|