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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
27 lines
928 B
LLVM
27 lines
928 B
LLVM
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
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; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-max-iterations=0 2>&1 | FileCheck %s
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; PR2607
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define i32 @b(i32 %x, i32 %y) nounwind {
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entry:
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%cmp2 = icmp slt i32 %y, %x
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%cond3 = select i1 %cmp2, i32 %y, i32 %x
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%cmp54 = icmp slt i32 %cond3, -2147483632
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br i1 %cmp54, label %forinc, label %afterfor
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forinc: ; preds = %forinc, %entry
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%j.01 = phi i32 [ %dec, %forinc ], [ -2147483632, %entry ]
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%dec = add i32 %j.01, -1
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%cmp = icmp slt i32 %y, %x
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%cond = select i1 %cmp, i32 %y, i32 %x
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%cmp5 = icmp sgt i32 %dec, %cond
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br i1 %cmp5, label %forinc, label %afterfor
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afterfor: ; preds = %forinc, %entry
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%j.0.lcssa = phi i32 [ -2147483632, %entry ], [ %dec, %forinc ]
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ret i32 %j.0.lcssa
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}
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; CHECK: backedge-taken count is (-2147483633 + (-1 * (%{{[xy]}} smin %{{[xy]}})))
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