| ; RUN: opt < %s -disable-output "-passes=print<da>" \ |
| ; RUN: "-aa-pipeline=basic-aa,globals-aa" 2>&1 | FileCheck %s |
| ; RUN: opt < %s -analyze -basic-aa -globals-aa -da | FileCheck %s |
| define void @i32_subscript(i32* %a) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ] |
| %a.addr = getelementptr i32, i32* %a, i32 %i |
| %a.addr.2 = getelementptr i32, i32* %a, i32 5 |
| %0 = load i32, i32* %a.addr, align 4 |
| %1 = add i32 %0, 1 |
| store i32 %1, i32* %a.addr.2, align 4 |
| %i.inc = add nsw i32 %i, 1 |
| %i.inc.ext = sext i32 %i to i64 |
| %exitcond = icmp ne i64 %i.inc.ext, 100 |
| br i1 %exitcond, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| ; CHECK: none |
| ; CHECK: anti |
| ; CHECK: output |
| |
| |
| ; Test for a bug, which caused an assert in ScalarEvolution because |
| ; the Dependence Analyzer attempted to zero extend a type to a smaller |
| ; type. |
| |
| ; void t(unsigned int *a, unsigned int n) { |
| ; for (unsigned int i = 0; i != n; i++) { |
| ; a[(unsigned short)i] = g; |
| ; }} |
| |
| @g = common global i32 0, align 4 |
| |
| define void @t(i32* noalias %a, i32 %n) nounwind { |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body |
| |
| for.body: |
| %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| %0 = load i32, i32* @g, align 4 |
| %idxprom = and i32 %i.02, 65535 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i32 %idxprom |
| store i32 %0, i32* %arrayidx, align 4 |
| %inc = add i32 %i.02, 1 |
| %cmp = icmp eq i32 %inc, %n |
| br i1 %cmp, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| ; CHECK: input |
| ; CHECK: none |
| ; CHECK: output |
| |
| define void @i16_wrap(i64* %a) { |
| entry: |
| br label %for.body |
| for.body: |
| %i = phi i64 [0, %entry], [%i.inc, %for.inc] |
| %i.tr = trunc i64 %i to i16 |
| %idx = getelementptr i64, i64* %a, i16 %i.tr |
| %0 = load i64, i64* %idx |
| %1 = add i64 %0, 1 |
| store i64 %1, i64* %idx |
| br label %for.inc |
| |
| for.inc: |
| %i.inc = add nuw i64 %i, 1 |
| %cmp = icmp ult i64 %i.inc, 17179869184 |
| br i1 %cmp, label %for.body, label %for.end |
| for.end: |
| ret void |
| } |
| ; CHECK: input |
| ; CHECK: anti |
| ; CHECK: output |
| |
| define void @i8_stride_wrap(i32* noalias %a, i32* noalias %b) { |
| entry: |
| br label %for.body |
| for.body: |
| %i = phi i32 [1,%entry], [%i.inc, %for.inc] |
| %i.tr = trunc i32 %i to i8 |
| %idx = getelementptr i32, i32* %a, i8 %i.tr |
| %idx.2 = getelementptr i32, i32* %b, i32 %i |
| %0 = load i32, i32* %idx, align 4 |
| %1 = add i32 %0, 1 |
| store i32 %1, i32* %idx.2, align 4 |
| br label %for.inc |
| |
| for.inc: |
| %i.inc = add nsw i32 %i, 256 |
| %exitcond = icmp ult i32 %i, 65536 |
| br i1 %exitcond, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| ; CHECK: input |
| ; CHECK: none |
| ; CHECK: none |