llvm-project/llvm/test/Transforms/FunctionAttrs/2009-01-04-Annotate.ll
Nick Lewycky c2ec0725ce Extend 'readonly' and 'readnone' to work on function arguments as well as
functions. Make the function attributes pass add it to known library functions
and when it can deduce it.

llvm-svn: 185735
2013-07-06 00:29:58 +00:00

22 lines
621 B
LLVM

; RUN: opt < %s -functionattrs -S | FileCheck %s
; CHECK: declare noalias i8* @fopen(i8* nocapture readonly, i8* nocapture readonly) #0
declare i8* @fopen(i8*, i8*)
; CHECK: declare i8 @strlen(i8* nocapture) #1
declare i8 @strlen(i8*)
; CHECK: declare noalias i32* @realloc(i32* nocapture, i32) #0
declare i32* @realloc(i32*, i32)
; Test deliberately wrong declaration
declare i32 @strcpy(...)
; CHECK-NOT: strcpy{{.*}}noalias
; CHECK-NOT: strcpy{{.*}}nocapture
; CHECK-NOT: strcpy{{.*}}nounwind
; CHECK-NOT: strcpy{{.*}}readonly
; CHECK: attributes #0 = { nounwind }
; CHECK: attributes #1 = { nounwind readonly }