[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
|
|
|
; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s
|
|
|
|
|
; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
|
2010-04-22 09:35:11 +08:00
|
|
|
|
|
|
|
|
; ScalarEvolution shouldn't attempt to interpret expressions which have
|
|
|
|
|
; undefined results.
|
|
|
|
|
|
|
|
|
|
define void @foo(i64 %x) {
|
|
|
|
|
|
|
|
|
|
%a = udiv i64 %x, 0
|
|
|
|
|
; CHECK: --> (%x /u 0)
|
|
|
|
|
|
|
|
|
|
%B = shl i64 %x, 64
|
|
|
|
|
; CHECK: --> %B
|
|
|
|
|
|
|
|
|
|
%b = ashr i64 %B, 64
|
|
|
|
|
; CHECK: --> %b
|
|
|
|
|
|
|
|
|
|
%c = lshr i64 %x, 64
|
|
|
|
|
; CHECK: --> %c
|
|
|
|
|
|
|
|
|
|
%d = shl i64 %x, 64
|
|
|
|
|
; CHECK: --> %d
|
|
|
|
|
|
|
|
|
|
%E = shl i64 %x, -1
|
|
|
|
|
; CHECK: --> %E
|
|
|
|
|
|
|
|
|
|
%e = ashr i64 %E, -1
|
|
|
|
|
; CHECK: --> %e
|
|
|
|
|
|
|
|
|
|
%f = lshr i64 %x, -1
|
|
|
|
|
; CHECK: --> %f
|
|
|
|
|
|
|
|
|
|
%g = shl i64 %x, -1
|
|
|
|
|
; CHECK: --> %g
|
|
|
|
|
|
|
|
|
|
%h = bitcast i64 undef to i64
|
|
|
|
|
; CHECK: --> undef
|
|
|
|
|
|
|
|
|
|
ret void
|
|
|
|
|
}
|