Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions

View File

@ -1,25 +0,0 @@
; RUN: opt -S -jump-threading < %s | FileCheck %s
define i8 @test(i32 %a, i32 %length) {
; CHECK-LABEL: @test
entry:
; CHECK: br label %backedge
br label %loop
loop:
; CHECK-LABEL: backedge:
; CHECK: phi i32
; CHECK: br i1 %cont, label %backedge, label %exit
%iv = phi i32 [0, %entry], [%iv.next, %backedge]
;; We can use an inductive argument to prove %iv is always positive
%cnd = icmp sge i32 %iv, 0
br i1 %cnd, label %backedge, label %exit
backedge:
%iv.next = add nsw i32 %iv, 1
%cont = icmp slt i32 %iv.next, 400
br i1 %cont, label %loop, label %exit
exit:
ret i8 0
}