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09cfe7939a
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
41 lines
721 B
LLVM
41 lines
721 B
LLVM
; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s
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; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
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; ScalarEvolution shouldn't attempt to interpret expressions which have
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; undefined results.
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define void @foo(i64 %x) {
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%a = udiv i64 %x, 0
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; CHECK: --> (%x /u 0)
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%B = shl i64 %x, 64
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; CHECK: --> %B
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%b = ashr i64 %B, 64
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; CHECK: --> %b
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%c = lshr i64 %x, 64
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; CHECK: --> %c
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%d = shl i64 %x, 64
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; CHECK: --> %d
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%E = shl i64 %x, -1
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; CHECK: --> %E
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%e = ashr i64 %E, -1
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; CHECK: --> %e
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%f = lshr i64 %x, -1
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; CHECK: --> %f
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%g = shl i64 %x, -1
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; CHECK: --> %g
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%h = bitcast i64 undef to i64
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; CHECK: --> undef
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ret void
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}
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