llvm-project/llvm/test/Transforms/ADCE/dce_pure_call.ll

; RUN: opt -adce -S < %s | not grep call

declare i32 @strlen(i8*) readonly nounwind

define void @test() {
	call i32 @strlen( i8* null )		; <i32>:1 [#uses=0]
	ret void
}
Use opt -S instead of piping bitcode output through llvm-dis. llvm-svn: 81257 2009-09-09 06:34:10 +08:00			`; RUN: opt -adce -S < %s \| not grep call`
New testcases llvm-svn: 12806 2004-04-10 14:52:20 +08:00
Allow readonly functions to unwind exceptions. Teach the optimizers about this. For example, a readonly function with no uses cannot be removed unless it is also marked nounwind. llvm-svn: 71071 2009-05-06 14:49:50 +08:00			`declare i32 @strlen(i8*) readonly nounwind`
New testcases llvm-svn: 12806 2004-04-10 14:52:20 +08:00
Ding dong, the DoesntAccessMemoryFns and OnlyReadsMemoryFns tables are dead! We get more, and more accurate, information from gcc via the readnone and readonly function attributes. llvm-svn: 44288 2007-11-24 03:30:27 +08:00			`define void @test() {`
Allow readonly functions to unwind exceptions. Teach the optimizers about this. For example, a readonly function with no uses cannot be removed unless it is also marked nounwind. llvm-svn: 71071 2009-05-06 14:49:50 +08:00			`call i32 @strlen( i8* null ) ; <i32>:1 [#uses=0]`
New testcases llvm-svn: 12806 2004-04-10 14:52:20 +08:00			`ret void`
			`}`