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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
32 lines
849 B
LLVM
32 lines
849 B
LLVM
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
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; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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; CHECK: @f
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; CHECK: Loop %bb16.preheader: backedge-taken count is (-1 + %c.idx.val)
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define i32 @f(i32 %c.idx.val) {
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bb2:
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%k.018 = add i32 %c.idx.val, -1 ; <i32> [#uses=2]
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%a14 = icmp slt i32 %k.018, 0 ; <i1> [#uses=1]
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br i1 %a14, label %bb19, label %bb16.preheader
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bb16.preheader:
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%k.019 = phi i32 [ %k.0, %bb18 ], [ %k.018, %bb2 ] ; <i32> [#uses=5]
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%x = phi i32 [ 0, %bb2 ], [ %x.1, %bb18]
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br label %bb18
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bb18: ; preds = %bb18.loopexit
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%x.1 = add i32 %x, 1
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%k.0 = add i32 %k.019, -1 ; <i32> [#uses=2]
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%a107 = icmp slt i32 %k.0, 0 ; <i1> [#uses=1]
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br i1 %a107, label %bb18.bb19_crit_edge, label %bb16.preheader
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bb18.bb19_crit_edge:
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ret i32 %x
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bb19:
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ret i32 0
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}
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