forked from OSchip/llvm-project
36 lines
850 B
LLVM
36 lines
850 B
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
declare void @foo(i64)
|
|
|
|
; CHECK-LABEL: @test
|
|
define void @test(i64 %a) {
|
|
entry:
|
|
br label %outer_header
|
|
|
|
outer_header:
|
|
%i = phi i64 [20, %entry], [%i.next, %outer_latch]
|
|
%i.next = add nuw nsw i64 %i, 1
|
|
br label %inner_header
|
|
|
|
inner_header:
|
|
%j = phi i64 [1, %outer_header], [%j.next, %inner_header]
|
|
%cmp = icmp ult i64 %j, %i.next
|
|
; CHECK-NOT: select
|
|
%s = select i1 %cmp, i64 %j, i64 %i
|
|
; CHECK: call void @foo(i64 %j)
|
|
call void @foo(i64 %s)
|
|
%j.next = add nuw nsw i64 %j, 1
|
|
%cond = icmp ult i64 %j, %i
|
|
br i1 %cond, label %inner_header, label %outer_latch
|
|
|
|
outer_latch:
|
|
%cond2 = icmp ne i64 %i.next, 40
|
|
br i1 %cond2, label %outer_header, label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|