[SCEV] Fix ScalarEvolution tests under NPM
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
2020-07-17 02:09:47 +08:00
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; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
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2015-10-08 02:14:25 +08:00
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define i32 @branch_true(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @branch_true
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entry:
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br i1 true, label %add, label %merge
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add:
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%sum = add i32 %x, %y
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK-NEXT: --> (%x + %y) U: full-set S: full-set
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ret i32 %v
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}
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define i32 @branch_false(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @branch_false
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entry:
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br i1 false, label %add, label %merge
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add:
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%sum = add i32 %x, %y
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK-NEXT: --> %x U: full-set S: full-set
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ret i32 %v
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}
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define i32 @select_true(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @select_true
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entry:
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%v = select i1 true, i32 %x, i32 %y
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; CHECK: %v = select i1 true, i32 %x, i32 %y
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; CHECK-NEXT: --> %x U: full-set S: full-set
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ret i32 %v
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}
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define i32 @select_false(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @select_false
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entry:
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%v = select i1 false, i32 %x, i32 %y
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; CHECK: %v = select i1 false, i32 %x, i32 %y
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; CHECK-NEXT: --> %y U: full-set S: full-set
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ret i32 %v
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}
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