[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 < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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2009-01-03 02:54:17 +08:00
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; PR3275
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2013-08-22 08:51:19 +08:00
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; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'func_15'
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; CHECK-NOT: /u -1
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2009-01-03 02:54:17 +08:00
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@g_16 = external global i16 ; <i16*> [#uses=3]
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@.str = external constant [4 x i8] ; <[4 x i8]*> [#uses=0]
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define void @func_15() nounwind {
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entry:
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2015-02-28 05:17:42 +08:00
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%0 = load i16, i16* @g_16, align 2 ; <i16> [#uses=1]
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2009-01-03 02:54:17 +08:00
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%1 = icmp sgt i16 %0, 0 ; <i1> [#uses=1]
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br i1 %1, label %bb2, label %bb.nph
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bb.nph: ; preds = %entry
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2015-02-28 05:17:42 +08:00
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%g_16.promoted = load i16, i16* @g_16 ; <i16> [#uses=1]
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2009-01-03 02:54:17 +08:00
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br label %bb
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bb: ; preds = %bb1, %bb.nph
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%g_16.tmp.0 = phi i16 [ %g_16.promoted, %bb.nph ], [ %2, %bb1 ] ; <i16> [#uses=1]
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%2 = add i16 %g_16.tmp.0, -1 ; <i16> [#uses=3]
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br label %bb1
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bb1: ; preds = %bb
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%3 = icmp sgt i16 %2, 0 ; <i1> [#uses=1]
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br i1 %3, label %bb1.bb2_crit_edge, label %bb
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bb1.bb2_crit_edge: ; preds = %bb1
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store i16 %2, i16* @g_16
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br label %bb2
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bb2: ; preds = %bb1.bb2_crit_edge, %entry
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br label %return
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return: ; preds = %bb2
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ret void
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}
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declare i32 @main() nounwind
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declare i32 @printf(i8*, ...) nounwind
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