caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
fc8a08765af8f32663776a42e85b28362b5658ce
clang-p2996/llvm/test/Transforms/SCCP/range-and.ll
Bjorn Pettersson 8ebb3eac02 [test] Use -passes syntax when specifying pipeline in some more tests 
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.

Differential Revision: https://reviews.llvm.org/D114516
2021-11-27 09:52:55 +01:00

428 lines
11 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --verbose
; RUN: opt -S -passes=sccp %s | FileCheck %s
declare void @use(i1)
define void @and_range_limit(i64 %a) {
; CHECK-LABEL: @and_range_limit(
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: [[C_0:%.*]] = icmp slt i64 [[R]], 15
; CHECK-NEXT: call void @use(i1 [[C_0]])
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[C_2:%.*]] = icmp eq i64 [[R]], 100
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_4:%.*]] = icmp ne i64 [[R]], 100
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret void
;
%r = and i64 %a, 255
%c.0 = icmp slt i64 %r, 15
call void @use(i1 %c.0)
%c.1 = icmp slt i64 %r, 256
call void @use(i1 %c.1)
%c.2 = icmp eq i64 %r, 100
call void @use(i1 %c.2)
%c.3 = icmp eq i64 %r, 300
call void @use(i1 %c.3)
%c.4 = icmp ne i64 %r, 100
call void @use(i1 %c.4)
%c.5 = icmp ne i64 %r, 300
call void @use(i1 %c.5)
ret void
}
; Below are test cases for PR44949.
; We can remove `%res = and i64 %p, 255`, because %r = 0 and we can eliminate
; %p as well.
define i64 @constant_and_undef(i1 %c1, i64 %a) {
; CHECK-LABEL: @constant_and_undef(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret i64 0
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
%r = and i64 %a, 0
br label %bb3
bb3:
%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
%res = and i64 %p, 255
ret i64 %res
}
; Check that we go to overdefined when merging a constant range with undef. We
; cannot remove '%res = and i64 %p, 255'.
define i64 @constant_range_and_undef(i1 %cond, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ [[R]], [[BB2]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %cond, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
%r = and i64 %a, 255
br label %bb3
bb3:
%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
%res = and i64 %p, 255
ret i64 %res
}
; Same as @constant_range_and_undef, with the undef coming from the other
; block.
define i64 @constant_range_and_undef_switched_incoming(i1 %cond, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_switched_incoming(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ undef, [[BB2]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %cond, label %bb1, label %bb2
bb1:
%r = and i64 %a, 255
br label %bb3
bb2:
br label %bb3
bb3:
%p = phi i64 [ %r, %bb1 ], [ undef, %bb2 ]
%res = and i64 %p, 255
ret i64 %res
}
define i64 @constant_range_and_255_100(i1 %cond, i64 %a) {
; CHECK-LABEL: @constant_range_and_255_100(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R_1:%.*]] = and i64 [[A:%.*]], 100
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[R_2:%.*]] = and i64 [[A]], 255
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R_1]], [[BB1]] ], [ [[R_2]], [[BB2]] ]
; CHECK-NEXT: [[P_AND:%.*]] = and i64 [[P]], 512
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret i64 [[P_AND]]
;
entry:
br i1 %cond, label %bb1, label %bb2
bb1:
%r.1 = and i64 %a, 100
br label %bb3
bb2:
%r.2 = and i64 %a, 255
br label %bb3
bb3:
%p = phi i64 [ %r.1, %bb1 ], [ %r.2, %bb2 ]
%p.and = and i64 %p, 512
%c = icmp ult i64 %p.and, 256
call void @use(i1 %c)
ret i64 %p.and
}
define i64 @constant_range_and_undef2(i1 %c1, i1 %c2, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[V1:%.*]] = add i64 undef, undef
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[V2:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[V1]], [[BB1]] ], [ [[V2]], [[BB2]] ]
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB4:%.*]], label [[BB5:%.*]]
; CHECK: bb4:
; CHECK-NEXT: br label [[BB6:%.*]]
; CHECK: bb5:
; CHECK-NEXT: [[V3:%.*]] = and i64 [[A]], 255
; CHECK-NEXT: br label [[BB6]]
; CHECK: bb6:
; CHECK-NEXT: [[P2:%.*]] = phi i64 [ [[P]], [[BB4]] ], [ [[V3]], [[BB5]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P2]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
%v1 = add i64 undef, undef
br label %bb3
bb2:
%v2 = and i64 %a, 255
br label %bb3
bb3:
%p = phi i64 [ %v1, %bb1 ], [ %v2, %bb2 ]
br i1 %c2, label %bb4, label %bb5
bb4:
br label %bb6
bb5:
%v3 = and i64 %a, 255
br label %bb6
bb6:
%p2 = phi i64 [ %p, %bb4 ], [ %v3, %bb5 ]
%res = and i64 %p2, 255
ret i64 %res
}
define i1 @constant_range_and_undef_3(i1 %cond, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_3(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ [[R]], [[BB2]] ]
; CHECK-NEXT: ret i1 true
;
entry:
br i1 %cond, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
%r = and i64 %a, 255
br label %bb3
bb3:
%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
%c = icmp ult i64 %p, 256
ret i1 %c
}
define i1 @constant_range_and_undef_3_switched_incoming(i1 %cond, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_3_switched_incoming(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ undef, [[BB2]] ]
; CHECK-NEXT: ret i1 true
;
entry:
br i1 %cond, label %bb1, label %bb2
bb1:
%r = and i64 %a, 255
br label %bb3
bb2:
br label %bb3
bb3:
%p = phi i64 [ %r, %bb1 ], [ undef, %bb2 ]
%c = icmp ult i64 %p, 256
ret i1 %c
}
; Same as @constant_range_and_undef, but with 3 incoming
; values: undef, a constant and a constant range.
define i64 @constant_range_and_undef_3_incoming_v1(i1 %c1, i1 %c2, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_3_incoming_v1(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB4:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB3:%.*]], label [[BB4]]
; CHECK: bb3:
; CHECK-NEXT: br label [[BB4]]
; CHECK: bb4:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ 10, [[BB2]] ], [ undef, [[BB3]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
%r = and i64 %a, 255
br label %bb4
bb2:
br i1 %c2, label %bb3, label %bb4
bb3:
br label %bb4
bb4:
%p = phi i64 [ %r, %bb1 ], [ 10, %bb2], [ undef, %bb3 ]
%res = and i64 %p, 255
ret i64 %res
}
; Same as @constant_range_and_undef_3_incoming_v1, but with different order of
; incoming values.
define i64 @constant_range_and_undef_3_incoming_v2(i1 %c1, i1 %c2, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_3_incoming_v2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB4:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB3:%.*]], label [[BB4]]
; CHECK: bb3:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB4]]
; CHECK: bb4:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ 10, [[BB2]] ], [ [[R]], [[BB3]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
br label %bb4
bb2:
br i1 %c2, label %bb3, label %bb4
bb3:
%r = and i64 %a, 255
br label %bb4
bb4:
%p = phi i64 [ undef, %bb1 ], [ 10, %bb2], [ %r, %bb3 ]
%res = and i64 %p, 255
ret i64 %res
}
; Same as @constant_range_and_undef_3_incoming_v1, but with different order of
; incoming values.
define i64 @constant_range_and_undef_3_incoming_v3(i1 %c1, i1 %c2, i64 %a) {
; CHECK-LABEL: @constant_range_and_undef_3_incoming_v3(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB4:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB3:%.*]], label [[BB4]]
; CHECK: bb3:
; CHECK-NEXT: br label [[BB4]]
; CHECK: bb4:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ undef, [[BB2]] ], [ 10, [[BB3]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
%r = and i64 %a, 255
br label %bb4
bb2:
br i1 %c2, label %bb3, label %bb4
bb3:
br label %bb4
bb4:
%p = phi i64 [ %r, %bb1 ], [ undef, %bb2], [ 10, %bb3 ]
%res = and i64 %p, 255
ret i64 %res
}
define i64 @constant_range_and_phi_constant_undef(i1 %c1, i1 %c2, i64 %a) {
; CHECK-LABEL: @constant_range_and_phi_constant_undef(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 255
; CHECK-NEXT: br label [[BB5:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB3:%.*]], label [[BB4:%.*]]
; CHECK: bb3:
; CHECK-NEXT: br label [[BB4]]
; CHECK: bb4:
; CHECK-NEXT: br label [[BB5]]
; CHECK: bb5:
; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ 10, [[BB4]] ]
; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
; CHECK-NEXT: ret i64 [[RES]]
;
entry:
br i1 %c1, label %bb1, label %bb2
bb1:
%r = and i64 %a, 255
br label %bb5
bb2:
br i1 %c2, label %bb3, label %bb4
bb3:
br label %bb4
bb4:
%p.1 = phi i64 [ 10, %bb2 ], [ undef, %bb3]
br label %bb5
bb5:
%p = phi i64 [ %r, %bb1 ], [ %p.1, %bb4]
%res = and i64 %p, 255
ret i64 %res
}
Reference in New Issue View Git Blame Copy Permalink