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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
36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
; RUN: opt < %s -analyze -enable-new-pm=0 -iv-users
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; RUN: opt < %s -disable-output -iv-users
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; RUN: opt < %s -passes='print<iv-users>'
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; PR9633: Tests that SCEV handles the mul.i2 recurrence being folded to
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; constant zero.
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define signext i8 @func_14(i8 signext %p_18) nounwind readnone ssp {
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entry:
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br label %for.inc
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for.inc:
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%p_17.addr.012 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
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%add = add nsw i32 %p_17.addr.012, 1
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br i1 false, label %for.inc, label %for.cond
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for.cond:
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%tobool.i = icmp ult i32 %add, 8192
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%shl.i = select i1 %tobool.i, i32 13, i32 0
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%shl.left.i = shl i32 %add, %shl.i
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%conv.i4 = trunc i32 %shl.left.i to i8
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br i1 undef, label %for.inc9, label %if.then
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for.inc9:
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%p_18.addr.011 = phi i8 [ %add12, %for.inc9 ], [ %p_18, %for.cond ]
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%add12 = add i8 %p_18.addr.011, 1
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%mul.i2 = mul i8 %add12, %conv.i4
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%mul.i2.lobit = lshr i8 %mul.i2, 7
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%lor.ext.shr.i = select i1 undef, i8 %mul.i2.lobit, i8 %mul.i2
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%tobool = icmp eq i8 %lor.ext.shr.i, 0
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br i1 %tobool, label %for.inc9, label %if.then
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if.then:
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ret i8 0
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}
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