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
39 lines
893 B
LLVM
39 lines
893 B
LLVM
; RUN: opt < %s -scalar-evolution -analyze -enable-new-pm=0 | FileCheck %s
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; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s
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; CHECK: Loop %bb3: backedge-taken count is (-1 + %n)
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; We don't want to use a max in the trip count expression in
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; this testcase.
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define void @foo(i32 %n, i32* %p, i32* %q) nounwind {
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entry:
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icmp sgt i32 %n, 0
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br i1 %0, label %bb, label %return
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bb:
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load i32, i32* %q, align 4
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icmp eq i32 %1, 0
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br i1 %2, label %return, label %bb3.preheader
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bb3.preheader:
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br label %bb3
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bb3:
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%i.0 = phi i32 [ %7, %bb3 ], [ 0, %bb3.preheader ]
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getelementptr i32, i32* %p, i32 %i.0
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load i32, i32* %3, align 4
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add i32 %4, 1
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getelementptr i32, i32* %p, i32 %i.0
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store i32 %5, i32* %6, align 4
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add i32 %i.0, 1
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icmp slt i32 %7, %n
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br i1 %8, label %bb3, label %return.loopexit
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return.loopexit:
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br label %return
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return:
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ret void
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}
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