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09cfe7939a
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
158 lines
3.5 KiB
LLVM
158 lines
3.5 KiB
LLVM
; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s
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; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
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define i32 @f0(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @f0
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entry:
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%c = icmp sgt i32 %y, 0
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br i1 %c, label %add, label %merge
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add:
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%sum = add i32 %x, %y
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK-NEXT: --> ((0 smax %y) + %x) U: full-set S: full-set
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ret i32 %v
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}
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define i32 @f1(i32 %x, i32 %y) {
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; CHECK-LABEL: Classifying expressions for: @f1
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entry:
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%c = icmp sge i32 %y, 0
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br i1 %c, label %add, label %merge
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add:
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%sum = add i32 %x, %y
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
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; CHECK-NEXT: --> ((0 smax %y) + %x) U: full-set S: full-set
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ret i32 %v
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}
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define i32 @f2(i32 %x, i32 %y, i32* %ptr) {
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; CHECK-LABEL: Classifying expressions for: @f2
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entry:
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%c = icmp sge i32 %y, 0
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br i1 %c, label %add, label %merge
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add:
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%lv = load i32, i32* %ptr
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br label %merge
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merge:
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%v = phi i32 [ %lv, %add ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %lv, %add ], [ %x, %entry ]
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; CHECK-NEXT: --> %v U: full-set S: full-set
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ret i32 %v
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}
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define i32 @f3(i32 %x, i32 %init, i32 %lim) {
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; CHECK-LABEL: Classifying expressions for: @f3
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entry:
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br label %loop
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loop:
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%iv = phi i32 [ %init, %entry ], [ %iv.inc, %merge ]
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%iv.inc = add i32 %iv, 1
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%c = icmp sge i32 %iv, 0
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br i1 %c, label %add, label %merge
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add:
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%sum = add i32 %x, %iv
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add ], [ %x, %loop ]
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; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %loop ]
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; CHECK-NEXT: --> ((0 smax {%init,+,1}<%loop>) + %x) U: full-set S: full-set
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%be.cond = icmp eq i32 %iv.inc, %lim
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br i1 %be.cond, label %loop, label %leave
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leave:
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ret i32 0
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}
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define i32 @f4(i32 %x, i32 %init, i32 %lim) {
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; CHECK-LABEL: Classifying expressions for: @f4
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entry:
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%c = icmp sge i32 %init, 0
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br i1 %c, label %add, label %merge
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add:
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br label %loop
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loop:
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%iv = phi i32 [ %init, %add ], [ %iv.inc, %loop ]
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%iv.inc = add i32 %iv, 1
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%be.cond = icmp eq i32 %iv.inc, %lim
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br i1 %be.cond, label %loop, label %add.cont
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add.cont:
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%sum = add i32 %x, %iv
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br label %merge
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merge:
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%v = phi i32 [ %sum, %add.cont ], [ %x, %entry ]
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; CHECK: %v = phi i32 [ %sum, %add.cont ], [ %x, %entry ]
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; CHECK-NEXT: --> %v U: full-set S: full-set
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ret i32 %v
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}
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define i32 @f5(i32* %val) {
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; CHECK-LABEL: Classifying expressions for: @f5
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entry:
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br label %for.end
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for.condt:
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br i1 true, label %for.cond.0, label %for.end
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for.end:
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%inc = load i32, i32* %val
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br i1 false, label %for.condt, label %for.cond.0
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for.cond.0:
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%init = phi i32 [ 0, %for.condt ], [ %inc, %for.end ]
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; CHECK: %init = phi i32 [ 0, %for.condt ], [ %inc, %for.end ]
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; CHECK-NEXT: --> %init U: full-set S: full-set
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; Matching "through" %init will break LCSSA at the SCEV expression
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; level.
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ret i32 %init
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}
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define i32 @f6(i32 %x, i32 %y) {
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; Do the right thing for unreachable code:
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; CHECK-LABEL: Classifying expressions for: @f6
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entry:
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%c0 = icmp sgt i32 %y, 0
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%sum = add i32 %x, %y
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br i1 %c0, label %merge, label %leave_1
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merge:
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%v0 = phi i32 [ %sum, %entry ], [ %v1, %unreachable ]
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%c1 = icmp slt i32 %y, 0
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br i1 %c1, label %leave_0, label %leave_0_cond
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leave_0_cond:
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br label %leave_0
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leave_0:
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%v1 = phi i32 [ %v0, %merge ], [ 0, %leave_0_cond ]
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ret i32 0
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leave_1:
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ret i32 0
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unreachable:
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br label %merge
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}
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