mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
6a56ac682f
Summary: This allows strlen to be moved out of the loop in case its argument is not modified in the loop in LICM. Reviewers: hfinkel, davide, sanjoy, dberlin Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D34323 llvm-svn: 305641
20 lines
414 B
LLVM
20 lines
414 B
LLVM
; RUN: opt -S -inferattrs -basicaa -licm < %s | FileCheck %s
|
|
|
|
define void @test(i64* noalias %loc, i8* noalias %a) {
|
|
; CHECK-LABEL: @test
|
|
; CHECK: @strlen
|
|
; CHECK-LABEL: loop:
|
|
br label %loop
|
|
|
|
loop:
|
|
%res = call i64 @strlen(i8* %a)
|
|
store i64 %res, i64* %loc
|
|
br label %loop
|
|
}
|
|
|
|
; CHECK: declare i64 @strlen(i8* nocapture) #0
|
|
; CHECK: attributes #0 = { argmemonly nounwind readonly }
|
|
declare i64 @strlen(i8*)
|
|
|
|
|