pr46857-callbr.ll
1.31 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -jump-threading -S | FileCheck %s
; CHECK-ALL-LABEL: @func(
define i1 @func(i1 %arg, i32 %arg1, i1 %arg2) {
; CHECK-LABEL: @func(
; CHECK-NEXT: bb:
; CHECK-NEXT: br i1 [[ARG:%.*]], label [[BB3:%.*]], label [[BB4:%.*]]
; CHECK: bb3:
; CHECK-NEXT: [[I:%.*]] = icmp eq i32 [[ARG1:%.*]], 0
; CHECK-NEXT: br label [[BB7:%.*]]
; CHECK: bb4:
; CHECK-NEXT: callbr void asm sideeffect "", "X"(i8* blockaddress(@func, [[BB7]]))
; CHECK-NEXT: to label [[BB5:%.*]] [label %bb7]
; CHECK: bb5:
; CHECK-NEXT: br label [[BB7]]
; CHECK: bb7:
; CHECK-NEXT: [[I8:%.*]] = phi i1 [ [[I]], [[BB3]] ], [ [[ARG2:%.*]], [[BB5]] ], [ [[ARG2]], [[BB4]] ]
; CHECK-NEXT: [[I9:%.*]] = xor i1 [[I8]], [[ARG]]
; CHECK-NEXT: br i1 [[I9]], label [[BB11:%.*]], label [[BB11]]
; CHECK: bb11:
; CHECK-NEXT: ret i1 [[I9]]
;
bb:
br i1 %arg, label %bb3, label %bb4
bb3:
%i = icmp eq i32 %arg1, 0
br label %bb7
bb4:
callbr void asm sideeffect "", "X"(i8* blockaddress(@func, %bb6))
to label %bb5 [label %bb6]
bb5:
br label %bb6
bb6:
br label %bb7
bb7:
%i8 = phi i1 [ %i, %bb3 ], [ %arg2, %bb6 ]
%i9 = xor i1 %i8, %arg
br i1 %i9, label %bb11, label %bb10
bb10:
br label %bb11
bb11:
ret i1 %i9
}