llvm-project/llvm/test/Transforms/FunctionAttrs/2009-01-04-Annotate.ll

; 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 }
Move library call prototype attribute inference to functionattrs The simplify-libcalls pass implemented a doInitialization hook to infer function prototype attributes for well-known functions. Given that the simplify-libcalls pass is going away and that the functionattrs pass is already in place to deduce function attributes, I am moving this logic to the functionattrs pass. This approach was discussed during patch review: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/157465.html. llvm-svn: 177619 2013-03-21 08:55:59 +08:00			`; RUN: opt < %s -functionattrs -S \| FileCheck %s`
Run a post-pass that marks known function declarations by name. llvm-svn: 61632 2009-01-05 04:27:34 +08:00
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 08:29:58 +08:00			`; CHECK: declare noalias i8* @fopen(i8* nocapture readonly, i8* nocapture readonly) #0`
Run a post-pass that marks known function declarations by name. llvm-svn: 61632 2009-01-05 04:27:34 +08:00			`declare i8* @fopen(i8, i8)`
FileCheck-ize the tests. llvm-svn: 174865 2013-02-11 16:34:57 +08:00
Modify the LLVM assembly output so that it uses references to represent function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605 2013-02-20 15:21:42 +08:00			`; CHECK: declare i8 @strlen(i8* nocapture) #1`
Run a post-pass that marks known function declarations by name. llvm-svn: 61632 2009-01-05 04:27:34 +08:00			`declare i8 @strlen(i8*)`
FileCheck-ize the tests. llvm-svn: 174865 2013-02-11 16:34:57 +08:00
Modify the LLVM assembly output so that it uses references to represent function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605 2013-02-20 15:21:42 +08:00			`; CHECK: declare noalias i32* @realloc(i32* nocapture, i32) #0`
Forgot this in the previous checkin: fopen now has nocapture, realloc is supposed to take two arguments. llvm-svn: 62457 2009-01-18 12:46:10 +08:00			`declare i32* @realloc(i32*, i32)`
Run a post-pass that marks known function declarations by name. llvm-svn: 61632 2009-01-05 04:27:34 +08:00
			`; Test deliberately wrong declaration`
			`declare i32 @strcpy(...)`
FileCheck-ize the tests. llvm-svn: 174865 2013-02-11 16:34:57 +08:00
			`; CHECK-NOT: strcpy{{.*}}noalias`
			`; CHECK-NOT: strcpy{{.*}}nocapture`
			`; CHECK-NOT: strcpy{{.*}}nounwind`
			`; CHECK-NOT: strcpy{{.*}}readonly`
Modify the LLVM assembly output so that it uses references to represent function attributes. This makes the LLVM assembly look better. E.g.: define void @foo() #0 { ret void } attributes #0 = { nounwind noinline ssp } llvm-svn: 175605 2013-02-20 15:21:42 +08:00
			`; CHECK: attributes #0 = { nounwind }`
			`; CHECK: attributes #1 = { nounwind readonly }`