Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2019-01-23 08:21:40 +00:00
parent a7724cd563
commit 279aa8f685
28482 changed files with 3866972 additions and 44 deletions

View File

@ -0,0 +1,45 @@
; RUN: opt -S -irce -irce-print-changed-loops=true < %s | FileCheck %s
; CHECK-NOT: irce
define void @bad_loop_structure_increasing(i64 %iv.start) {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ %iv.start, %entry ], [ %indvars.iv.next, %for.inc ]
%cmp = icmp ult i64 %indvars.iv, 100
br i1 %cmp, label %switch.lookup, label %for.inc
switch.lookup:
br label %for.inc
for.inc:
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%cmp55 = icmp slt i64 %indvars.iv.next, 11
br i1 %cmp55, label %for.body, label %for.end
for.end:
ret void
}
define void @bad_loop_structure_decreasing(i64 %iv.start) {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ %iv.start, %entry ], [ %indvars.iv.next, %for.inc ]
%cmp = icmp ult i64 %indvars.iv, 100
br i1 %cmp, label %switch.lookup, label %for.inc
switch.lookup:
br label %for.inc
for.inc:
%indvars.iv.next = add nuw nsw i64 %indvars.iv, -1
%cmp55 = icmp sgt i64 %indvars.iv.next, 11
br i1 %cmp55, label %for.body, label %for.end
for.end:
ret void
}