9adbb5cb3a
Many tests use opt's -analyze feature, which does not translate well to
NPM and has better alternatives. The alternative here is to explicitly
add a pass that calls ScalarEvolution::print().
The legacy pass manager RUNs aren't changing, but they are now pinned to
the legacy pass manager. For each legacy pass manager RUN, I added a
corresponding NPM RUN using the 'print<scalar-evolution>' pass. For
compatibility with update_analyze_test_checks.py and existing test
CHECKs, 'print<scalar-evolution>' now prints what -analyze prints per
function.
This was generated by the following Python script and failures were
manually fixed up:
import sys
for i in sys.argv:
with open(i, 'r') as f:
s = f.read()
with open(i, 'w') as f:
for l in s.splitlines():
if "RUN:" in l and ' -analyze ' in l and '\\' not in l:
f.write(l.replace(' -analyze ', ' -analyze -enable-new-pm=0 '))
f.write('\n')
f.write(l.replace(' -analyze ', ' -disable-output ').replace(' -scalar-evolution ', ' "-passes=print<scalar-evolution>" ').replace(" | ", " 2>&1 | "))
f.write('\n')
else:
f.write(l)
There are a couple failures still in ScalarEvolution under NPM, but
those are due to other unrelated naming conflicts.
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D83798
29 lines
1.1 KiB
LLVM
29 lines
1.1 KiB
LLVM
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
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; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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; PR13228
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define void @f() nounwind uwtable readnone {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.cond, %entry
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%c.0 = phi i8 [ 1, %entry ], [ 0, %for.cond ]
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%i.0 = phi i8 [ 0, %entry ], [ %inc, %for.cond ]
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%lnot = icmp eq i8 %i.0, 0
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%inc = add i8 %i.0, 1
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br i1 %lnot, label %for.cond, label %while.cond
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while.cond: ; preds = %while.body, %for.cond
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%b.2 = phi i8 [ %add, %while.body ], [ 0, %for.cond ]
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br i1 undef, label %while.end, label %while.body
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while.body: ; preds = %while.cond
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%add = add i8 %b.2, %c.0
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%tobool7 = icmp eq i8 %add, 0
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br i1 %tobool7, label %while.end, label %while.cond
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while.end: ; preds = %while.body, %while.cond
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ret void
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}
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;CHECK: Loop %while.cond: <multiple exits> Unpredictable backedge-taken count.
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