2020-06-05 12:18:15 +03:00
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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[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 -S -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
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; RUN: opt < %s -S -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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2020-06-05 12:18:15 +03:00
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define i8 @or-of-constant-with-no-common-bits-set(i8 %x, i8 %y) {
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; CHECK-LABEL: 'or-of-constant-with-no-common-bits-set'
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; CHECK-NEXT: Classifying expressions for: @or-of-constant-with-no-common-bits-set
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; CHECK-NEXT: %t0 = shl i8 %x, 2
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; CHECK-NEXT: --> (4 * %x) U: [0,-3) S: [-128,125)
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; CHECK-NEXT: %r = or i8 %t0, 3
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; CHECK-NEXT: --> (3 + (4 * %x))<nuw><nsw> U: [3,0) S: [-125,-128)
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; CHECK-NEXT: Determining loop execution counts for: @or-of-constant-with-no-common-bits-set
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;
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%t0 = shl i8 %x, 2
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%r = or i8 %t0, 3
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ret i8 %r
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}
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