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clang-p2996/llvm/test/Analysis/ScalarEvolution/max-expr-cache.ll
Arthur Eubanks 9adbb5cb3a [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

158 lines
6.3 KiB
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; 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
; SCEV would take a long time to compute SCEV expressions for this IR. If SCEV
; finishes in < 1 second then the bug is fixed.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64--linux-gnu"
define void @smax(i32 %tmp3) {
; CHECK-LABEL: Printing analysis 'Scalar Evolution Analysis' for function 'smax'
entry:
br label %bb4
bb4:
%tmp5 = phi i64 [ %tmp62, %bb61 ], [ 0, %entry ]
%tmp6 = trunc i64 %tmp5 to i32
%tmp7 = shl nsw i32 %tmp6, 8
%tmp8 = sub nsw i32 %tmp3, %tmp7
%tmp9 = icmp slt i32 %tmp8, 256
%tmp10 = select i1 %tmp9, i32 %tmp8, i32 256
%tmp11 = add nsw i32 %tmp10, 1
%tmp12 = icmp sgt i32 %tmp8, %tmp11
%tmp13 = select i1 %tmp12, i32 %tmp11, i32 %tmp8
%tmp14 = icmp slt i32 %tmp13, 256
%tmp15 = select i1 %tmp14, i32 %tmp13, i32 256
%tmp16 = add nsw i32 %tmp15, 1
%tmp17 = icmp sgt i32 %tmp8, %tmp16
%tmp18 = select i1 %tmp17, i32 %tmp16, i32 %tmp8
%tmp19 = icmp slt i32 %tmp18, 256
%tmp20 = select i1 %tmp19, i32 %tmp18, i32 256
%tmp21 = add nsw i32 %tmp20, 1
%tmp22 = icmp sgt i32 %tmp8, %tmp21
%tmp23 = select i1 %tmp22, i32 %tmp21, i32 %tmp8
%tmp24 = icmp slt i32 %tmp23, 256
%tmp25 = select i1 %tmp24, i32 %tmp23, i32 256
%tmp26 = add nsw i32 %tmp25, 1
%tmp27 = icmp sgt i32 %tmp8, %tmp26
%tmp28 = select i1 %tmp27, i32 %tmp26, i32 %tmp8
%tmp29 = icmp slt i32 %tmp28, 256
%tmp30 = select i1 %tmp29, i32 %tmp28, i32 256
%tmp31 = add nsw i32 %tmp30, 1
%tmp32 = icmp sgt i32 %tmp8, %tmp31
%tmp33 = select i1 %tmp32, i32 %tmp31, i32 %tmp8
%tmp34 = icmp slt i32 %tmp33, 256
%tmp35 = select i1 %tmp34, i32 %tmp33, i32 256
%tmp36 = add nsw i32 %tmp35, 1
%tmp37 = icmp sgt i32 %tmp8, %tmp36
%tmp38 = select i1 %tmp37, i32 %tmp36, i32 %tmp8
%tmp39 = icmp slt i32 %tmp38, 256
%tmp40 = select i1 %tmp39, i32 %tmp38, i32 256
%tmp41 = add nsw i32 %tmp40, 1
%tmp42 = icmp sgt i32 %tmp8, %tmp41
%tmp43 = select i1 %tmp42, i32 %tmp41, i32 %tmp8
%tmp44 = add nsw i32 %tmp10, 7
%tmp45 = icmp slt i32 %tmp43, 256
%tmp46 = select i1 %tmp45, i32 %tmp43, i32 256
; CHECK: %tmp46 = select i1 %tmp45, i32 %tmp43, i32 256
; CHECK-NEXT: --> (256 smin (1 + (256 smin (1 + (256 smin (1 + (256 smin (1 + (256 smin (1 + (256 smin (1 + (256 smin (1 + (256 smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>))<nsw> smin {%tmp3,+,-256}<%bb4>) U: [-2147483648,257) S: [-2147483648,257)
%tmp47 = icmp sgt i32 %tmp44, %tmp46
%tmp48 = select i1 %tmp47, i32 %tmp44, i32 %tmp46
%tmp49 = ashr i32 %tmp48, 3
%tmp50 = icmp sgt i32 %tmp49, 0
%tmp51 = select i1 %tmp50, i32 %tmp49, i32 0
%tmp52 = zext i32 %tmp51 to i64
br label %bb53
bb53:
%tmp54 = phi i64 [ undef, %bb4 ], [ %tmp59, %bb53 ]
%tmp55 = trunc i64 %tmp54 to i32
%tmp56 = shl nsw i32 %tmp55, 3
%tmp57 = sext i32 %tmp56 to i64
%tmp58 = getelementptr inbounds i8, i8* null, i64 %tmp57
store i8 undef, i8* %tmp58, align 8
%tmp59 = add nsw i64 %tmp54, 1
%tmp60 = icmp eq i64 %tmp59, %tmp52
br i1 %tmp60, label %bb61, label %bb53
bb61:
%tmp62 = add nuw nsw i64 %tmp5, 1
br label %bb4
}
define void @umax(i32 %tmp3) {
; CHECK-LABEL: Printing analysis 'Scalar Evolution Analysis' for function 'umax'
entry:
br label %bb4
bb4:
%tmp5 = phi i64 [ %tmp62, %bb61 ], [ 0, %entry ]
%tmp6 = trunc i64 %tmp5 to i32
%tmp7 = shl nsw i32 %tmp6, 8
%tmp8 = sub nsw i32 %tmp3, %tmp7
%tmp9 = icmp ult i32 %tmp8, 256
%tmp10 = select i1 %tmp9, i32 %tmp8, i32 256
%tmp11 = add nsw i32 %tmp10, 1
%tmp12 = icmp ugt i32 %tmp8, %tmp11
%tmp13 = select i1 %tmp12, i32 %tmp11, i32 %tmp8
%tmp14 = icmp ult i32 %tmp13, 256
%tmp15 = select i1 %tmp14, i32 %tmp13, i32 256
%tmp16 = add nsw i32 %tmp15, 1
%tmp17 = icmp ugt i32 %tmp8, %tmp16
%tmp18 = select i1 %tmp17, i32 %tmp16, i32 %tmp8
%tmp19 = icmp ult i32 %tmp18, 256
%tmp20 = select i1 %tmp19, i32 %tmp18, i32 256
%tmp21 = add nsw i32 %tmp20, 1
%tmp22 = icmp ugt i32 %tmp8, %tmp21
%tmp23 = select i1 %tmp22, i32 %tmp21, i32 %tmp8
%tmp24 = icmp ult i32 %tmp23, 256
%tmp25 = select i1 %tmp24, i32 %tmp23, i32 256
%tmp26 = add nsw i32 %tmp25, 1
%tmp27 = icmp ugt i32 %tmp8, %tmp26
%tmp28 = select i1 %tmp27, i32 %tmp26, i32 %tmp8
%tmp29 = icmp ult i32 %tmp28, 256
%tmp30 = select i1 %tmp29, i32 %tmp28, i32 256
%tmp31 = add nsw i32 %tmp30, 1
%tmp32 = icmp ugt i32 %tmp8, %tmp31
%tmp33 = select i1 %tmp32, i32 %tmp31, i32 %tmp8
%tmp34 = icmp ult i32 %tmp33, 256
%tmp35 = select i1 %tmp34, i32 %tmp33, i32 256
%tmp36 = add nsw i32 %tmp35, 1
%tmp37 = icmp ugt i32 %tmp8, %tmp36
%tmp38 = select i1 %tmp37, i32 %tmp36, i32 %tmp8
%tmp39 = icmp ult i32 %tmp38, 256
%tmp40 = select i1 %tmp39, i32 %tmp38, i32 256
%tmp41 = add nsw i32 %tmp40, 1
%tmp42 = icmp ugt i32 %tmp8, %tmp41
%tmp43 = select i1 %tmp42, i32 %tmp41, i32 %tmp8
%tmp44 = add nsw i32 %tmp10, 7
%tmp45 = icmp ult i32 %tmp43, 256
%tmp46 = select i1 %tmp45, i32 %tmp43, i32 256
; CHECK: %tmp46 = select i1 %tmp45, i32 %tmp43, i32 256
; CHECK-NEXT: --> (256 umin (1 + (256 umin (1 + (256 umin (1 + (256 umin (1 + (256 umin (1 + (256 umin (1 + (256 umin (1 + (256 umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>))<nuw><nsw> umin {%tmp3,+,-256}<%bb4>) U: [0,257) S: [0,257)
%tmp47 = icmp ugt i32 %tmp44, %tmp46
%tmp48 = select i1 %tmp47, i32 %tmp44, i32 %tmp46
%tmp49 = ashr i32 %tmp48, 3
%tmp50 = icmp ugt i32 %tmp49, 0
%tmp51 = select i1 %tmp50, i32 %tmp49, i32 0
%tmp52 = zext i32 %tmp51 to i64
br label %bb53
bb53:
%tmp54 = phi i64 [ undef, %bb4 ], [ %tmp59, %bb53 ]
%tmp55 = trunc i64 %tmp54 to i32
%tmp56 = shl nsw i32 %tmp55, 3
%tmp57 = sext i32 %tmp56 to i64
%tmp58 = getelementptr inbounds i8, i8* null, i64 %tmp57
store i8 undef, i8* %tmp58, align 8
%tmp59 = add nsw i64 %tmp54, 1
%tmp60 = icmp eq i64 %tmp59, %tmp52
br i1 %tmp60, label %bb61, label %bb53
bb61:
%tmp62 = add nuw nsw i64 %tmp5, 1
br label %bb4
}
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