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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=jump-threading -S < %s | FileCheck %s
declare void @f()
declare void @g()
declare void @h()
define i32 @test(i1 %cond, i1 %a, i1 %b) {
; CHECK-LABEL: @test(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[C:%.*]]
; CHECK: A:
; CHECK-NEXT: call void @f()
; CHECK-NEXT: br i1 [[A:%.*]], label [[EXIT1:%.*]], label [[EXIT2:%.*]]
; CHECK: C:
; CHECK-NEXT: call void @g()
; CHECK-NEXT: br i1 [[B:%.*]], label [[EXIT1]], label [[EXIT2]]
; CHECK: EXIT1:
; CHECK-NEXT: ret i32 0
; CHECK: EXIT2:
; CHECK-NEXT: ret i32 1
;
br i1 %cond, label %A, label %B
A:
call void @f()
br label %C
B:
call void @g()
br label %C
C:
%p = phi i1 [%a, %A], [%b, %B] ; Check that this is removed
br i1 %p, label %EXIT1, label %EXIT2
EXIT1:
ret i32 0
EXIT2:
ret i32 1
}
define i32 @test2(i1 %cond, i1 %a, i1 %b) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[C:%.*]]
; CHECK: A:
; CHECK-NEXT: call void @f()
; CHECK-NEXT: [[P_FR1:%.*]] = freeze i1 [[A:%.*]]
; CHECK-NEXT: br i1 [[P_FR1]], label [[EXIT1:%.*]], label [[EXIT2:%.*]]
; CHECK: C:
; CHECK-NEXT: call void @g()
; CHECK-NEXT: [[P_FR:%.*]] = freeze i1 [[B:%.*]]
; CHECK-NEXT: br i1 [[P_FR]], label [[EXIT1]], label [[EXIT2]]
; CHECK: EXIT1:
; CHECK-NEXT: ret i32 0
; CHECK: EXIT2:
; CHECK-NEXT: ret i32 1
;
br i1 %cond, label %A, label %B
A:
call void @f()
br label %C
B:
call void @g()
br label %C
C:
%p = phi i1 [%a, %A], [%b, %B] ; Check that this is removed
%p.fr = freeze i1 %p
br i1 %p.fr, label %EXIT1, label %EXIT2
EXIT1:
ret i32 0
EXIT2:
ret i32 1
}
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