llvm-6502/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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-08 22:34:10 +00:00			`; RUN: opt -adce -S < %s \| not grep call`
New testcases git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12806 91177308-0d34-0410-b5e6-96231b3b80d8 2004-04-10 06:52:20 +00:00
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8 2009-05-06 06:49:50 +00:00			`declare i32 @strlen(i8*) readonly nounwind`
New testcases git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12806 91177308-0d34-0410-b5e6-96231b3b80d8 2004-04-10 06:52:20 +00:00
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44288 91177308-0d34-0410-b5e6-96231b3b80d8 2007-11-23 19:30:27 +00:00			`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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8 2009-05-06 06:49:50 +00:00			`call i32 @strlen( i8* null ) ; <i32>:1 [#uses=0]`
New testcases git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12806 91177308-0d34-0410-b5e6-96231b3b80d8 2004-04-10 06:52:20 +00:00			`ret void`
			`}`