blob: 469b78cc4f164cac4c3355c361e0cb544ff242f6 [file] [log] [blame]
; RUN: opt < %s -gvn -enable-pre -jump-threading -S | FileCheck %s
@H = common global i32 0
@G = common global i32 0
define i32 @test(i1 %cond, i32 %v) nounwind {
; CHECK-LABEL: @test
entry:
br i1 %cond, label %bb, label %bb1
bb:
; CHECK: store
; CHECK-NOT: br label %return
%add.1 = add nuw nsw i32 %v, -1
store i32 %add.1, i32* @G, align 4
br label %merge
bb1:
br label %merge
merge:
%add.2 = add i32 %v, -1
%cmp = icmp sgt i32 %add.2, 0
br i1 %cmp, label %action, label %return
action:
; CHECK: store
; CHECK-NEXT: br label %return
store i32 %add.2, i32* @H, align 4
br label %return
return:
%p = phi i32 [0, %merge], [1, %action]
ret i32 %p
}