1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
; Make sure that the compare instruction occurs after the increment to avoid
; having overlapping live ranges that result in copies. We want the setcc
; instruction immediately before the conditional branch.
;
; RUN: opt -S -loop-reduce < %s | FileCheck %s
define void @foo(float* %D, i32 %E) {
entry:
br label %no_exit
no_exit: ; preds = %no_exit, %entry
%indvar = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ] ; <i32> [#uses=1]
store volatile float 0.000000e+00, float* %D
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
; CHECK: icmp
; CHECK-NEXT: br i1
%exitcond = icmp eq i32 %indvar.next, %E ; <i1> [#uses=1]
br i1 %exitcond, label %loopexit, label %no_exit
loopexit: ; preds = %no_exit
ret void
}
|
