forked from OSchip/llvm-project
255 lines
6.1 KiB
LLVM
255 lines
6.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -S -ipsccp < %s | FileCheck %s
|
|
|
|
; Make sure we always consider the default edge executable for a switch
|
|
; with no cases.
|
|
declare void @foo()
|
|
define void @test1() {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: switch i32 undef, label [[D:%.*]] [
|
|
; CHECK-NEXT: ]
|
|
; CHECK: d:
|
|
; CHECK-NEXT: call void @foo()
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
switch i32 undef, label %d []
|
|
d:
|
|
call void @foo()
|
|
ret void
|
|
}
|
|
|
|
define i32 @test_duplicate_successors_phi(i1 %c, i32 %x) {
|
|
; CHECK-LABEL: @test_duplicate_successors_phi(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br i1 [[C:%.*]], label [[SWITCH:%.*]], label [[END:%.*]]
|
|
; CHECK: switch:
|
|
; CHECK-NEXT: br label [[SWITCH_DEFAULT:%.*]]
|
|
; CHECK: switch.default:
|
|
; CHECK-NEXT: ret i32 -1
|
|
; CHECK: end:
|
|
; CHECK-NEXT: ret i32 [[X:%.*]]
|
|
;
|
|
entry:
|
|
br i1 %c, label %switch, label %end
|
|
|
|
switch:
|
|
switch i32 -1, label %switch.default [
|
|
i32 0, label %end
|
|
i32 1, label %end
|
|
]
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
end:
|
|
%phi = phi i32 [ %x, %entry ], [ 1, %switch ], [ 1, %switch ]
|
|
ret i32 %phi
|
|
}
|
|
|
|
define i32 @test_duplicate_successors_phi_2(i1 %c, i32 %x) {
|
|
; CHECK-LABEL: @test_duplicate_successors_phi_2(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br i1 [[C:%.*]], label [[SWITCH:%.*]], label [[END:%.*]]
|
|
; CHECK: switch:
|
|
; CHECK-NEXT: br label [[END]]
|
|
; CHECK: end:
|
|
; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[X:%.*]], [[ENTRY:%.*]] ], [ 1, [[SWITCH]] ]
|
|
; CHECK-NEXT: ret i32 [[PHI]]
|
|
;
|
|
entry:
|
|
br i1 %c, label %switch, label %end
|
|
|
|
switch:
|
|
switch i32 0, label %switch.default [
|
|
i32 0, label %end
|
|
i32 1, label %end
|
|
]
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
end:
|
|
%phi = phi i32 [ %x, %entry ], [ 1, %switch ], [ 1, %switch ]
|
|
ret i32 %phi
|
|
}
|
|
|
|
define i32 @test_duplicate_successors_phi_3(i1 %c1, i32* %p, i32 %y) {
|
|
; CHECK-LABEL: @test_duplicate_successors_phi_3(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br i1 [[C1:%.*]], label [[SWITCH:%.*]], label [[SWITCH_1:%.*]]
|
|
; CHECK: switch:
|
|
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
|
|
; CHECK-NEXT: switch i32 [[X]], label [[SWITCH_DEFAULT:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[SWITCH_DEFAULT]]
|
|
; CHECK-NEXT: i32 1, label [[SWITCH_0:%.*]]
|
|
; CHECK-NEXT: i32 2, label [[SWITCH_0]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: switch.default:
|
|
; CHECK-NEXT: ret i32 -1
|
|
; CHECK: switch.0:
|
|
; CHECK-NEXT: ret i32 0
|
|
; CHECK: switch.1:
|
|
; CHECK-NEXT: ret i32 [[Y:%.*]]
|
|
;
|
|
entry:
|
|
br i1 %c1, label %switch, label %switch.1
|
|
|
|
switch:
|
|
%x = load i32, i32* %p, !range !{i32 0, i32 3}
|
|
switch i32 %x, label %switch.default [
|
|
i32 0, label %switch.default
|
|
i32 1, label %switch.0
|
|
i32 2, label %switch.0
|
|
i32 3, label %switch.1
|
|
i32 4, label %switch.1
|
|
]
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
switch.0:
|
|
ret i32 0
|
|
|
|
switch.1:
|
|
%phi = phi i32 [ %y, %entry ], [ 0, %switch ], [ 0, %switch ]
|
|
ret i32 %phi
|
|
}
|
|
|
|
; TODO: Determine that the default destination is dead.
|
|
define i32 @test_local_range(i32* %p) {
|
|
; CHECK-LABEL: @test_local_range(
|
|
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
|
|
; CHECK-NEXT: switch i32 [[X]], label [[SWITCH_DEFAULT:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[SWITCH_0:%.*]]
|
|
; CHECK-NEXT: i32 1, label [[SWITCH_1:%.*]]
|
|
; CHECK-NEXT: i32 2, label [[SWITCH_2:%.*]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: switch.default:
|
|
; CHECK-NEXT: ret i32 -1
|
|
; CHECK: switch.0:
|
|
; CHECK-NEXT: ret i32 0
|
|
; CHECK: switch.1:
|
|
; CHECK-NEXT: ret i32 1
|
|
; CHECK: switch.2:
|
|
; CHECK-NEXT: ret i32 2
|
|
;
|
|
%x = load i32, i32* %p, !range !{i32 0, i32 3}
|
|
switch i32 %x, label %switch.default [
|
|
i32 0, label %switch.0
|
|
i32 1, label %switch.1
|
|
i32 2, label %switch.2
|
|
i32 3, label %switch.3
|
|
]
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
switch.0:
|
|
ret i32 0
|
|
|
|
switch.1:
|
|
ret i32 1
|
|
|
|
switch.2:
|
|
ret i32 2
|
|
|
|
switch.3:
|
|
ret i32 3
|
|
}
|
|
|
|
; TODO: Determine that case i3 is dead, even though the edge is shared?
|
|
define i32 @test_duplicate_successors(i32* %p) {
|
|
; CHECK-LABEL: @test_duplicate_successors(
|
|
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
|
|
; CHECK-NEXT: switch i32 [[X]], label [[SWITCH_DEFAULT:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[SWITCH_0:%.*]]
|
|
; CHECK-NEXT: i32 1, label [[SWITCH_0]]
|
|
; CHECK-NEXT: i32 2, label [[SWITCH_1:%.*]]
|
|
; CHECK-NEXT: i32 3, label [[SWITCH_1]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: switch.default:
|
|
; CHECK-NEXT: ret i32 -1
|
|
; CHECK: switch.0:
|
|
; CHECK-NEXT: ret i32 0
|
|
; CHECK: switch.1:
|
|
; CHECK-NEXT: ret i32 1
|
|
;
|
|
%x = load i32, i32* %p, !range !{i32 0, i32 3}
|
|
switch i32 %x, label %switch.default [
|
|
i32 0, label %switch.0
|
|
i32 1, label %switch.0
|
|
i32 2, label %switch.1
|
|
i32 3, label %switch.1
|
|
i32 4, label %switch.2
|
|
i32 5, label %switch.2
|
|
]
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
switch.0:
|
|
ret i32 0
|
|
|
|
switch.1:
|
|
ret i32 1
|
|
|
|
switch.2:
|
|
ret i32 2
|
|
}
|
|
|
|
; Case i32 2 is dead as well, but this cannot be determined based on
|
|
; range information.
|
|
define internal i32 @test_ip_range(i32 %x) {
|
|
; CHECK-LABEL: @test_ip_range(
|
|
; CHECK-NEXT: switch i32 [[X:%.*]], label [[SWITCH_DEFAULT:%.*]] [
|
|
; CHECK-NEXT: i32 3, label [[SWITCH_3:%.*]]
|
|
; CHECK-NEXT: i32 1, label [[SWITCH_1:%.*]]
|
|
; CHECK-NEXT: i32 2, label [[SWITCH_2:%.*]]
|
|
; CHECK-NEXT: ], !prof !1
|
|
; CHECK: switch.default:
|
|
; CHECK-NEXT: ret i32 -1
|
|
; CHECK: switch.1:
|
|
; CHECK-NEXT: ret i32 1
|
|
; CHECK: switch.2:
|
|
; CHECK-NEXT: ret i32 2
|
|
; CHECK: switch.3:
|
|
; CHECK-NEXT: ret i32 3
|
|
;
|
|
switch i32 %x, label %switch.default [
|
|
i32 0, label %switch.0
|
|
i32 1, label %switch.1
|
|
i32 2, label %switch.2
|
|
i32 3, label %switch.3
|
|
], !prof !{!"branch_weights", i32 1, i32 2, i32 3, i32 4, i32 5}
|
|
|
|
switch.default:
|
|
ret i32 -1
|
|
|
|
switch.0:
|
|
ret i32 0
|
|
|
|
switch.1:
|
|
ret i32 1
|
|
|
|
switch.2:
|
|
ret i32 2
|
|
|
|
switch.3:
|
|
ret i32 3
|
|
}
|
|
|
|
define void @call_test_ip_range() {
|
|
; CHECK-LABEL: @call_test_ip_range(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @test_ip_range(i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = call i32 @test_ip_range(i32 3)
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
call i32 @test_ip_range(i32 1)
|
|
call i32 @test_ip_range(i32 3)
|
|
ret void
|
|
}
|
|
|
|
declare void @llvm.assume(i1)
|
|
|
|
; CHECK: !1 = !{!"branch_weights", i32 1, i32 5, i32 3, i32 4}
|