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llvm-mirror/test/Analysis/ScalarEvolution/2009-05-09-PointerEdgeCount.ll
Arthur Eubanks 09cfe7939a [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
2020-07-16 11:24:07 -07:00

33 lines
1.2 KiB
LLVM

; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
; PR3171
; CHECK: count is 2
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
%struct.Foo = type { i32 }
%struct.NonPod = type { [2 x %struct.Foo] }
define void @_Z3foov() nounwind {
entry:
%x = alloca %struct.NonPod, align 8 ; <%struct.NonPod*> [#uses=2]
%0 = getelementptr %struct.NonPod, %struct.NonPod* %x, i32 0, i32 0 ; <[2 x %struct.Foo]*> [#uses=1]
%1 = getelementptr [2 x %struct.Foo], [2 x %struct.Foo]* %0, i32 1, i32 0 ; <%struct.Foo*> [#uses=1]
br label %bb1.i
bb1.i: ; preds = %bb2.i, %entry
%.0.i = phi %struct.Foo* [ %1, %entry ], [ %4, %bb2.i ] ; <%struct.Foo*> [#uses=2]
%2 = getelementptr %struct.NonPod, %struct.NonPod* %x, i32 0, i32 0, i32 0 ; <%struct.Foo*> [#uses=1]
%3 = icmp eq %struct.Foo* %.0.i, %2 ; <i1> [#uses=1]
br i1 %3, label %_ZN6NonPodD1Ev.exit, label %bb2.i
bb2.i: ; preds = %bb1.i
%4 = getelementptr %struct.Foo, %struct.Foo* %.0.i, i32 -1 ; <%struct.Foo*> [#uses=1]
br label %bb1.i
_ZN6NonPodD1Ev.exit: ; preds = %bb1.i
ret void
}