llvm/test/Transforms/Util/PredicateInfo/branch-on-same-cond.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-inst-comments
; RUN: opt -S -passes='print<predicate-info>' < %s 2>&1 >/dev/null | FileCheck %s

; FIXME:  RenamedOp should be %cmp or %x in all cases here,
; which is the value used in the condition.
define i32 @test(i32 %x) {
; CHECK-LABEL: @test(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[BB1:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 1 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB1]],label [[BB2:%.*]]], RenamedOp: [[CMP]] }
; CHECK-NEXT:    [[CMP_0:%.*]] = bitcast i1 [[CMP]] to i1
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 1 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB1]],label [[BB2]]], RenamedOp: [[X]] }
; CHECK-NEXT:    [[X_0:%.*]] = bitcast i32 [[X]] to i32
; CHECK-NEXT:    br i1 [[CMP]], label [[BB2]], label [[EXIT1:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 1 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB2]],label [[BB3:%.*]]], RenamedOp: [[CMP_0]] }
; CHECK-NEXT:    [[CMP_0_1:%.*]] = bitcast i1 [[CMP_0]] to i1
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 1 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB2]],label [[BB3]]], RenamedOp: [[X]] }
; CHECK-NEXT:    [[X_0_1:%.*]] = bitcast i32 [[X_0]] to i32
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 0 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB2]],label [[EXIT2:%.*]]], RenamedOp: [[X_0]] }
; CHECK-NEXT:    [[X_0_4:%.*]] = bitcast i32 [[X_0]] to i32
; CHECK-NEXT:    br i1 [[CMP_0]], label [[BB3]], label [[EXIT2]]
; CHECK:       bb3:
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 1 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB3]],label [[EXIT3:%.*]]], RenamedOp: [[X]] }
; CHECK-NEXT:    [[X_0_1_2:%.*]] = bitcast i32 [[X_0_1]] to i32
; CHECK-NEXT:  ; branch predicate info { TrueEdge: 0 Comparison: [[CMP]] = icmp eq i32 [[X]], 0 Edge: [label [[BB3]],label [[EXIT4:%.*]]], RenamedOp: [[X_0_1]] }
; CHECK-NEXT:    [[X_0_1_3:%.*]] = bitcast i32 [[X_0_1]] to i32
; CHECK-NEXT:    br i1 [[CMP_0_1]], label [[EXIT3]], label [[EXIT4]]
; CHECK:       exit1:
; CHECK-NEXT:    ret i32 0
; CHECK:       exit2:
; CHECK-NEXT:    ret i32 [[X_0_4]]
; CHECK:       exit3:
; CHECK-NEXT:    ret i32 [[X_0_1_2]]
; CHECK:       exit4:
; CHECK-NEXT:    ret i32 [[X_0_1_3]]
;
entry:
  br label %bb1

bb1:
  %cmp = icmp eq i32 %x, 0
  br i1 %cmp, label %bb2, label %exit1

bb2:
  br i1 %cmp, label %bb3, label %exit2

bb3:
  br i1 %cmp, label %exit3, label %exit4

exit1:
  ret i32 0

exit2:
  ret i32 %x

exit3:
  ret i32 %x

exit4:
  ret i32 %x
}