[SCEV] Fix ScalarEvolution tests under NPM
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
2020-07-16 11:09:47 -07:00
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; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution
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; RUN: opt < %s -disable-output -scalar-evolution
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2009-07-04 17:24:52 +00:00
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; PR4501
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define void @test() {
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entry:
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2015-02-27 21:17:42 +00:00
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%0 = load i16, i16* undef, align 1
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2009-07-04 17:24:52 +00:00
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%1 = lshr i16 %0, 8
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%2 = and i16 %1, 3
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%3 = zext i16 %2 to i32
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2015-02-27 21:17:42 +00:00
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%4 = load i8, i8* undef, align 1
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2009-07-04 17:24:52 +00:00
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%5 = lshr i8 %4, 4
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%6 = and i8 %5, 1
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%7 = zext i8 %6 to i32
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%t1 = add i32 %3, %7
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ret void
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}
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