555e09c2b0
This updates the naming for the LAA printing pass to be in line with most other analysis printing passes. The old name has come up as confusing multiple times already, e.g. in D131924.
48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
; RUN: opt -passes='print<access-info>' -disable-output < %s 2>&1 | FileCheck %s
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; In:
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;
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; store_ptr = A;
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; load_ptr = &A[2];
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; for (i = 0; i < n; i++)
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; *store_ptr++ = *load_ptr++ *10; // A[i] = A[i+2] * 10
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;
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; make sure, we look through the PHI to conclude that store_ptr and load_ptr
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; both have A as their underlying object. The dependence is safe for
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; vectorization requiring no memchecks.
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;
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; Otherwise we would try to prove independence with a memcheck that is going
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; to always fail.
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.10.0"
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; CHECK: Memory dependences are safe{{$}}
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define void @f(i8* noalias %A, i64 %width) {
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for.body.preheader:
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%A_ahead = getelementptr inbounds i8, i8* %A, i64 2
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br label %for.body
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for.body:
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%i = phi i64 [ %i.1, %for.body ], [ 0, %for.body.preheader ]
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%load_ptr = phi i8* [ %load_ptr.1, %for.body ], [ %A_ahead, %for.body.preheader ]
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%store_ptr = phi i8* [ %store_ptr.1, %for.body ], [ %A, %for.body.preheader ]
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%loadA = load i8, i8* %load_ptr, align 1
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%mul = mul i8 %loadA, 10
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store i8 %mul, i8* %store_ptr, align 1
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%load_ptr.1 = getelementptr inbounds i8, i8* %load_ptr, i64 1
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%store_ptr.1 = getelementptr inbounds i8, i8* %store_ptr, i64 1
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%i.1 = add nuw i64 %i, 1
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%exitcond = icmp eq i64 %i.1, %width
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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