forked from OSchip/llvm-project
[CVP] Add additional icmp for ranges with undef to test.
This commit is contained in:
Florian Hahn
parent
83c81c0a46
commit
84c1fbab5d
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@ -3,6 +3,8 @@
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; Test case for PR44949.
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declare void @use(i1)
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; We can remove `%res = and i64 %p, 255`, because %r = 0 and we can eliminate
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; %p as well.
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define i64 @constant_and_undef(i1 %c1, i64 %a) {
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@ -15,6 +17,8 @@ define i64 @constant_and_undef(i1 %c1, i64 %a) {
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; CHECK-NEXT: [[R:%.*]] = and i64 [[A:%.*]], 0
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret i64 0
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;
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entry:
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@ -30,12 +34,15 @@ bb2:
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bb3:
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%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
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%res = and i64 %p, 255
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%f.1 = icmp eq i64 %p, 1
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call void @use(i1 %f.1)
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%t.1 = icmp eq i64 %p, 0
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call void @use(i1 %t.1)
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ret i64 %res
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}
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; Check that we go to overdefined when merging a constant range with undef. We
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; cannot remove '%res = and i64 %p, 255'.
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; FIXME: should not remove '%res = and i64 %p, 255'
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define i64 @constant_range_and_undef(i1 %cond, i64 %a) {
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; CHECK-LABEL: @constant_range_and_undef(
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; CHECK-NEXT: entry:
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@ -48,6 +55,12 @@ define i64 @constant_range_and_undef(i1 %cond, i64 %a) {
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; CHECK: bb3:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ [[R]], [[BB2]] ]
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; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i64 [[RES]]
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;
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entry:
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@ -63,6 +76,13 @@ bb2:
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bb3:
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%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
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%res = and i64 %p, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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@ -87,6 +107,12 @@ define i64 @constant_range_and_undef2(i1 %c1, i1 %c2, i64 %a) {
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; CHECK: bb6:
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; CHECK-NEXT: [[P2:%.*]] = phi i64 [ [[P]], [[BB4]] ], [ [[V3]], [[BB5]] ]
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; CHECK-NEXT: [[RES:%.*]] = and i64 [[P2]], 255
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i64 [[RES]]
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;
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entry:
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@ -114,6 +140,13 @@ bb5:
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bb6:
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%p2 = phi i64 [ %p, %bb4 ], [ %v3, %bb5 ]
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%res = and i64 %p2, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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@ -128,7 +161,13 @@ define i1 @constant_range_and_undef_3(i1 %cond, i64 %a) {
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ [[R]], [[BB2]] ]
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[C:%.*]] = icmp ult i64 [[P]], 256
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i1 [[C]]
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;
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entry:
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@ -143,7 +182,14 @@ bb2:
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bb3:
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%p = phi i64 [ undef, %bb1 ], [ %r, %bb2 ]
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%c = icmp ult i64 %p, 256
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i1 %c
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}
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@ -163,6 +209,12 @@ define i64 @constant_range_and_undef_3_incoming_v1(i1 %c1, i1 %c2, i64 %a) {
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; CHECK: bb4:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ 10, [[BB2]] ], [ undef, [[BB3]] ]
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; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i64 [[RES]]
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;
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entry:
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@ -181,6 +233,13 @@ bb3:
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bb4:
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%p = phi i64 [ %r, %bb1 ], [ 10, %bb2], [ undef, %bb3 ]
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%res = and i64 %p, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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@ -200,6 +259,12 @@ define i64 @constant_range_and_undef_3_incoming_v2(i1 %c1, i1 %c2, i64 %a) {
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; CHECK: bb4:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ undef, [[BB1]] ], [ 10, [[BB2]] ], [ [[R]], [[BB3]] ]
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; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i64 [[RES]]
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;
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entry:
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@ -218,6 +283,13 @@ bb3:
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bb4:
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%p = phi i64 [ undef, %bb1 ], [ 10, %bb2], [ %r, %bb3 ]
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%res = and i64 %p, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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@ -237,6 +309,12 @@ define i64 @constant_range_and_undef_3_incoming_v3(i1 %c1, i1 %c2, i64 %a) {
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; CHECK: bb4:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ undef, [[BB2]] ], [ 10, [[BB3]] ]
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; CHECK-NEXT: [[RES:%.*]] = and i64 [[P]], 255
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[F_1:%.*]] = icmp eq i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[F_1]])
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; CHECK-NEXT: [[T_1:%.*]] = icmp ne i64 [[P]], 256
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; CHECK-NEXT: call void @use(i1 [[T_1]])
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; CHECK-NEXT: ret i64 [[RES]]
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;
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entry:
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@ -255,10 +333,16 @@ bb3:
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bb4:
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%p = phi i64 [ %r, %bb1 ], [ undef, %bb2], [ 10, %bb3 ]
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%res = and i64 %p, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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define i64 @constant_range_and_phi_constant_undef(i1 %c1, i1 %c2, i64 %a) {
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; CHECK-LABEL: @constant_range_and_phi_constant_undef(
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; CHECK-NEXT: entry:
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@ -274,6 +358,10 @@ define i64 @constant_range_and_phi_constant_undef(i1 %c1, i1 %c2, i64 %a) {
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; CHECK-NEXT: br label [[BB5]]
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; CHECK: bb5:
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; CHECK-NEXT: [[P:%.*]] = phi i64 [ [[R]], [[BB1]] ], [ 10, [[BB4]] ]
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret i64 [[P]]
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;
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entry:
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@ -296,5 +384,12 @@ bb4:
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bb5:
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%p = phi i64 [ %r, %bb1 ], [ %p.1, %bb4]
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%res = and i64 %p, 255
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br label %exit
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exit: ; CVP only simplifies based on ranges for non-local conditions.
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%f.1 = icmp eq i64 %p, 256
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call void @use(i1 %f.1)
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%t.1 = icmp ne i64 %p, 256
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call void @use(i1 %t.1)
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ret i64 %res
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}
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