derek.holloway
7502bf64a4
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100 lines
4.4 KiB
LLVM
100 lines
4.4 KiB
LLVM
; RUN: opt -disable-output -passes='print<access-info><allow-partial>,print<access-info>' %s 2>&1 | FileCheck %s --check-prefixes=ALLOW-BEFORE
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; RUN: opt -disable-output -passes='print<access-info>,print<access-info><allow-partial>' %s 2>&1 | FileCheck %s --check-prefixes=ALLOW-AFTER
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; Check that we get the right results when loop access analysis is run twice,
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; once without partial results and once with.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32"
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define void @gep_loaded_offset(ptr %p, ptr %q, ptr %r, i32 %n) {
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; ALLOW-BEFORE-LABEL: 'gep_loaded_offset'
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; ALLOW-BEFORE-NEXT: while.body:
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; ALLOW-BEFORE-NEXT: Report: cannot identify array bounds
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; ALLOW-BEFORE-NEXT: Dependences:
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; ALLOW-BEFORE-NEXT: Run-time memory checks:
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; ALLOW-BEFORE-NEXT: Check 0:
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; ALLOW-BEFORE-NEXT: Comparing group GRP0:
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; ALLOW-BEFORE-NEXT: %p.addr = phi ptr [ %incdec.ptr, %while.body ], [ %p, %entry ]
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; ALLOW-BEFORE-NEXT: Against group GRP1:
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; ALLOW-BEFORE-NEXT: ptr %r
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; ALLOW-BEFORE-NEXT: Grouped accesses:
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; ALLOW-BEFORE-NEXT: Group GRP0:
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; ALLOW-BEFORE-NEXT: (Low: %p High: (4 + (4 * (zext i32 (-1 + %n)<nsw> to i64))<nuw><nsw> + %p))
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; ALLOW-BEFORE-NEXT: Member: {%p,+,4}<nuw><%while.body>
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; ALLOW-BEFORE-NEXT: Group GRP1:
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; ALLOW-BEFORE-NEXT: (Low: %r High: (8 + %r))
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; ALLOW-BEFORE-NEXT: Member: %r
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; ALLOW-BEFORE-NEXT: Generated run-time checks are incomplete
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; ALLOW-BEFORE-EMPTY:
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; ALLOW-BEFORE-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; ALLOW-BEFORE-NEXT: SCEV assumptions:
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; ALLOW-BEFORE-EMPTY:
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; ALLOW-BEFORE-NEXT: Expressions re-written:
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;
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; ALLOW-BEFORE-LABEL: 'gep_loaded_offset'
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; ALLOW-BEFORE-NEXT: while.body:
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; ALLOW-BEFORE-NEXT: Report: cannot identify array bounds
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; ALLOW-BEFORE-NEXT: Dependences:
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; ALLOW-BEFORE-NEXT: Run-time memory checks:
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; ALLOW-BEFORE-NEXT: Grouped accesses:
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; ALLOW-BEFORE-EMPTY:
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; ALLOW-BEFORE-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; ALLOW-BEFORE-NEXT: SCEV assumptions:
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; ALLOW-BEFORE-EMPTY:
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; ALLOW-BEFORE-NEXT: Expressions re-written:
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;
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; ALLOW-AFTER-LABEL: 'gep_loaded_offset'
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; ALLOW-AFTER-NEXT: while.body:
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; ALLOW-AFTER-NEXT: Report: cannot identify array bounds
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; ALLOW-AFTER-NEXT: Dependences:
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; ALLOW-AFTER-NEXT: Run-time memory checks:
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; ALLOW-AFTER-NEXT: Grouped accesses:
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; ALLOW-AFTER-EMPTY:
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; ALLOW-AFTER-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; ALLOW-AFTER-NEXT: SCEV assumptions:
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; ALLOW-AFTER-EMPTY:
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; ALLOW-AFTER-NEXT: Expressions re-written:
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;
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; ALLOW-AFTER-LABEL: 'gep_loaded_offset'
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; ALLOW-AFTER-NEXT: while.body:
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; ALLOW-AFTER-NEXT: Report: cannot identify array bounds
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; ALLOW-AFTER-NEXT: Dependences:
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; ALLOW-AFTER-NEXT: Run-time memory checks:
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; ALLOW-AFTER-NEXT: Check 0:
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; ALLOW-AFTER-NEXT: Comparing group GRP0:
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; ALLOW-AFTER-NEXT: %p.addr = phi ptr [ %incdec.ptr, %while.body ], [ %p, %entry ]
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; ALLOW-AFTER-NEXT: Against group GRP1:
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; ALLOW-AFTER-NEXT: ptr %r
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; ALLOW-AFTER-NEXT: Grouped accesses:
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; ALLOW-AFTER-NEXT: Group GRP0:
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; ALLOW-AFTER-NEXT: (Low: %p High: (4 + (4 * (zext i32 (-1 + %n)<nsw> to i64))<nuw><nsw> + %p))
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; ALLOW-AFTER-NEXT: Member: {%p,+,4}<nuw><%while.body>
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; ALLOW-AFTER-NEXT: Group GRP1:
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; ALLOW-AFTER-NEXT: (Low: %r High: (8 + %r))
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; ALLOW-AFTER-NEXT: Member: %r
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; ALLOW-AFTER-NEXT: Generated run-time checks are incomplete
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; ALLOW-AFTER-EMPTY:
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; ALLOW-AFTER-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; ALLOW-AFTER-NEXT: SCEV assumptions:
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; ALLOW-AFTER-EMPTY:
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; ALLOW-AFTER-NEXT: Expressions re-written:
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;
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entry:
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br label %while.body
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while.body:
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%n.addr = phi i32 [ %dec, %while.body ], [ %n, %entry ]
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%p.addr = phi ptr [ %incdec.ptr, %while.body ], [ %p, %entry ]
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%dec = add nsw i32 %n.addr, -1
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%rval = load i64, ptr %r, align 4
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%arrayidx = getelementptr inbounds i32, ptr %q, i64 %rval
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%val = load i32, ptr %arrayidx, align 4
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%incdec.ptr = getelementptr inbounds nuw i8, ptr %p.addr, i64 4
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store i32 %val, ptr %p.addr, align 4
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%tobool.not = icmp eq i32 %dec, 0
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br i1 %tobool.not, label %while.end, label %while.body
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while.end:
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ret void
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}
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