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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
59 lines
1.7 KiB
LLVM
59 lines
1.7 KiB
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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; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'f':
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; CHECK: Loop %loop: <multiple exits> Unpredictable backedge-taken count.
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; CHECK: Loop %loop: max backedge-taken count is 0
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; CHECK: Loop %loop: Unpredictable predicated backedge-taken count.
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define void @f(i32 %n, i32* %ptr) {
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entry:
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br label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %iv.inc, %be ]
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%iv.inc = add i32 %iv, 1
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%unswitch_cond_root = icmp ne i32 %iv.inc, 42
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%us.0 = and i1 %unswitch_cond_root, %unswitch_cond_root
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%us.1 = and i1 %us.0, %us.0
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%us.2 = and i1 %us.1, %us.1
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%us.3 = and i1 %us.2, %us.2
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%us.4 = and i1 %us.3, %us.3
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%us.5 = and i1 %us.4, %us.4
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%us.6 = and i1 %us.5, %us.5
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%us.7 = and i1 %us.6, %us.6
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%us.8 = and i1 %us.7, %us.7
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%us.9 = and i1 %us.8, %us.8
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%us.10 = and i1 %us.9, %us.9
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%us.11 = and i1 %us.10, %us.10
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%us.12 = and i1 %us.11, %us.11
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%us.13 = and i1 %us.12, %us.12
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%us.14 = and i1 %us.13, %us.13
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%us.15 = and i1 %us.14, %us.14
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%us.16 = and i1 %us.15, %us.15
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%us.17 = and i1 %us.16, %us.16
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%us.18 = and i1 %us.17, %us.17
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%us.19 = and i1 %us.18, %us.18
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%us.20 = and i1 %us.19, %us.19
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%us.21 = and i1 %us.20, %us.20
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%us.22 = and i1 %us.21, %us.21
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%us.23 = and i1 %us.22, %us.22
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%us.24 = and i1 %us.23, %us.23
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%us.25 = and i1 %us.24, %us.24
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%us.26 = and i1 %us.25, %us.25
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%us.27 = and i1 %us.26, %us.26
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%us.28 = and i1 %us.27, %us.27
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%us.29 = and i1 %us.28, %us.28
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br i1 %us.29, label %leave, label %be
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be:
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store volatile i32 0, i32* %ptr
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%becond = icmp ult i32 %iv.inc, %n
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br i1 %becond, label %leave, label %loop
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leave:
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ret void
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}
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