2019-04-17 06:52:47 +02:00
|
|
|
; RUN: opt -jump-threading -S < %s | FileCheck %s
|
|
|
|
|
; RUN: opt -passes=jump-threading -S < %s | FileCheck %s
|
|
|
|
|
|
|
|
|
|
define void @test() {
|
|
|
|
|
; CHECK-LABEL: @test()
|
|
|
|
|
bb:
|
|
|
|
|
%tmp = call i32 @a()
|
|
|
|
|
%tmp1 = icmp eq i32 %tmp, 1
|
|
|
|
|
br i1 %tmp1, label %bb5, label %bb2
|
|
|
|
|
; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb2: ; preds = %bb
|
|
|
|
|
%tmp3 = call i32 @b()
|
|
|
|
|
%tmp4 = icmp ne i32 %tmp3, 1
|
|
|
|
|
br label %bb5
|
|
|
|
|
; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb5: ; preds = %bb2, %bb
|
|
|
|
|
%tmp6 = phi i1 [ false, %bb ], [ %tmp4, %bb2 ]
|
|
|
|
|
br i1 %tmp6, label %bb8, label %bb7, !prof !0
|
|
|
|
|
|
|
|
|
|
bb7: ; preds = %bb5
|
|
|
|
|
call void @bar()
|
|
|
|
|
br label %bb8
|
|
|
|
|
|
|
|
|
|
bb8: ; preds = %bb7, %bb5
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define void @test_single_pred1() {
|
|
|
|
|
; CHECK-LABEL: @test_single_pred1()
|
|
|
|
|
bb:
|
|
|
|
|
%tmp = call i32 @a()
|
|
|
|
|
%tmp1 = icmp eq i32 %tmp, 1
|
|
|
|
|
br i1 %tmp1, label %bb5_1, label %bb2
|
|
|
|
|
; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb5_1:
|
|
|
|
|
br label %bb5;
|
|
|
|
|
|
|
|
|
|
bb2:
|
|
|
|
|
%tmp3 = call i32 @b()
|
|
|
|
|
%tmp4 = icmp ne i32 %tmp3, 1
|
|
|
|
|
br label %bb5
|
|
|
|
|
; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb5:
|
|
|
|
|
%tmp6 = phi i1 [ false, %bb5_1 ], [ %tmp4, %bb2 ]
|
|
|
|
|
br i1 %tmp6, label %bb8, label %bb7, !prof !0
|
|
|
|
|
|
|
|
|
|
bb7:
|
|
|
|
|
call void @bar()
|
|
|
|
|
br label %bb8
|
|
|
|
|
|
|
|
|
|
bb8:
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define void @test_single_pred2() {
|
|
|
|
|
; CHECK-LABEL: @test_single_pred2()
|
|
|
|
|
bb:
|
|
|
|
|
%tmp = call i32 @a()
|
|
|
|
|
%tmp1 = icmp eq i32 %tmp, 1
|
|
|
|
|
br i1 %tmp1, label %bb5_1, label %bb2
|
|
|
|
|
; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb5_1:
|
|
|
|
|
br label %bb5_2;
|
|
|
|
|
|
|
|
|
|
bb5_2:
|
|
|
|
|
br label %bb5;
|
|
|
|
|
|
|
|
|
|
bb2:
|
|
|
|
|
%tmp3 = call i32 @b()
|
|
|
|
|
%tmp4 = icmp ne i32 %tmp3, 1
|
|
|
|
|
br label %bb5
|
|
|
|
|
; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]]
|
|
|
|
|
|
|
|
|
|
bb5:
|
|
|
|
|
%tmp6 = phi i1 [ false, %bb5_2 ], [ %tmp4, %bb2 ]
|
|
|
|
|
br i1 %tmp6, label %bb8, label %bb7, !prof !0
|
|
|
|
|
|
|
|
|
|
bb7:
|
|
|
|
|
call void @bar()
|
|
|
|
|
br label %bb8
|
|
|
|
|
|
|
|
|
|
bb8:
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
declare void @bar()
|
|
|
|
|
|
|
|
|
|
declare i32 @a()
|
|
|
|
|
|
|
|
|
|
declare i32 @b()
|
|
|
|
|
|
2020-10-31 08:15:46 +01:00
|
|
|
!0 = !{!"branch_weights", i32 2146410443, i32 1073205}
|
|
|
|
|
;CHECK: ![[PROF1]] = !{!"branch_weights", i32 1073205, i32 2146410443}
|
|
|
|
|
;CHECK: ![[PROF2]] = !{!"branch_weights", i32 2146410443, i32 1073205}
|
