[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 -analyze -enable-new-pm=0 -scalar-evolution -S < %s | FileCheck %s
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; RUN: opt -disable-output "-passes=print<scalar-evolution>" -S < %s 2>&1 | FileCheck %s
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2018-06-22 05:29:54 +08:00
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define i64 @test1(i32 %a, i32 %b) {
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; CHECK-LABEL: @test1
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%div = udiv i32 %a, %b
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%zext = zext i32 %div to i64
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; CHECK: %zext
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; CHECK-NEXT: --> ((zext i32 %a to i64) /u (zext i32 %b to i64))
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ret i64 %zext
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}
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define i64 @test2(i32 %a, i32 %b) {
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; CHECK-LABEL: @test2
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%rem = urem i32 %a, %b
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%zext = zext i32 %rem to i64
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; CHECK: %zext
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; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
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ret i64 %zext
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}
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define i64 @test3(i32 %a, i32 %b) {
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; CHECK-LABEL: @test3
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%div = udiv i32 %a, %b
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%mul = mul i32 %div, %b
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%sub = sub i32 %a, %mul
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%zext = zext i32 %sub to i64
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; CHECK: %zext
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; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
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ret i64 %zext
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}
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define i64 @test4(i32 %t) {
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; CHECK-LABEL: @test4
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%a = udiv i32 %t, 2
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%div = udiv i32 %t, 112
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%mul = mul i32 %div, 56
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%sub = sub i32 %a, %mul
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%zext = zext i32 %sub to i64
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; CHECK: %zext
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; CHECK-NEXT: --> ((-56 * ((zext i32 %t to i64) /u 112)) + ((zext i32 %t to i64) /u 2))
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ret i64 %zext
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}
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