1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=jump-threading -S | FileCheck %s
4 define i1 @func(i1 %arg, i32 %arg1, i1 %arg2) {
7 ; CHECK-NEXT: br i1 [[ARG:%.*]], label [[BB7:%.*]], label [[BB4:%.*]]
9 ; CHECK-NEXT: callbr void asm sideeffect "", "!i"()
10 ; CHECK-NEXT: to label [[BB7_THR_COMM:%.*]] [label %bb7.thr_comm]
11 ; CHECK: bb7.thr_comm:
12 ; CHECK-NEXT: [[I91:%.*]] = xor i1 [[ARG2:%.*]], [[ARG]]
13 ; CHECK-NEXT: br i1 [[I91]], label [[BB11:%.*]], label [[BB11]]
15 ; CHECK-NEXT: [[I:%.*]] = icmp eq i32 [[ARG1:%.*]], 0
16 ; CHECK-NEXT: [[I9:%.*]] = xor i1 [[I]], [[ARG]]
17 ; CHECK-NEXT: br i1 [[I9]], label [[BB11]], label [[BB11]]
19 ; CHECK-NEXT: [[I93:%.*]] = phi i1 [ [[I91]], [[BB7_THR_COMM]] ], [ [[I9]], [[BB7]] ], [ [[I91]], [[BB7_THR_COMM]] ], [ [[I9]], [[BB7]] ]
20 ; CHECK-NEXT: ret i1 [[I93]]
23 br i1 %arg, label %bb3, label %bb4
26 %i = icmp eq i32 %arg1, 0
30 callbr void asm sideeffect "", "!i"()
31 to label %bb5 [label %bb6]
40 %i8 = phi i1 [ %i, %bb3 ], [ %arg2, %bb6 ]
41 %i9 = xor i1 %i8, %arg
42 br i1 %i9, label %bb11, label %bb10
51 define i32 @callbr_no_block_merge() {
52 ; CHECK-LABEL: @callbr_no_block_merge(
53 ; CHECK-NEXT: [[X:%.*]] = callbr i32 asm sideeffect "", "=r"()
54 ; CHECK-NEXT: to label [[BB:%.*]] []
56 ; CHECK-NEXT: ret i32 [[X]]
58 %x = callbr i32 asm sideeffect "", "=r"()