mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-25 05:52:53 +02:00
25 lines
657 B
LLVM
25 lines
657 B
LLVM
|
; RUN: opt < %s -analyze -block-freq | FileCheck %s
|
||
|
|
||
|
define i32 @test1(i32 %i, i32* %a) {
|
||
|
; CHECK: Printing analysis {{.*}} for function 'test1'
|
||
|
; CHECK: entry = 1024
|
||
|
entry:
|
||
|
br label %body
|
||
|
|
||
|
; Loop backedges are weighted and thus their bodies have a greater frequency.
|
||
|
; CHECK: body = 31744
|
||
|
body:
|
||
|
%iv = phi i32 [ 0, %entry ], [ %next, %body ]
|
||
|
%base = phi i32 [ 0, %entry ], [ %sum, %body ]
|
||
|
%arrayidx = getelementptr inbounds i32* %a, i32 %iv
|
||
|
%0 = load i32* %arrayidx
|
||
|
%sum = add nsw i32 %0, %base
|
||
|
%next = add i32 %iv, 1
|
||
|
%exitcond = icmp eq i32 %next, %i
|
||
|
br i1 %exitcond, label %exit, label %body
|
||
|
|
||
|
; CHECK: exit = 1024
|
||
|
exit:
|
||
|
ret i32 %sum
|
||
|
}
|