mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-03 00:29:31 +00:00
f5b6bc7f0e
code. Patch by Benjamin Kramer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68885 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
1.2 KiB
LLVM
28 lines
1.2 KiB
LLVM
; Test that the StrNCatOptimizer works correctly
|
|
; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | \
|
|
; RUN: not grep {call.*strncat}
|
|
; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | \
|
|
; RUN: grep {puts.*%arg1}
|
|
|
|
@hello = constant [6 x i8] c"hello\00" ; <[6 x i8]*> [#uses=1]
|
|
@null = constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1]
|
|
@null_hello = constant [7 x i8] c"\00hello\00" ; <[7 x i8]*> [#uses=1]
|
|
|
|
declare i8* @strncat(i8*, i8*, i32)
|
|
|
|
declare i32 @puts(i8*)
|
|
|
|
define i32 @main() {
|
|
%target = alloca [1024 x i8] ; <[1024 x i8]*> [#uses=1]
|
|
%arg1 = getelementptr [1024 x i8]* %target, i32 0, i32 0 ; <i8*> [#uses=2]
|
|
store i8 0, i8* %arg1
|
|
%arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%rslt1 = call i8* @strncat( i8* %arg1, i8* %arg2, i32 6 ) ; <i8*> [#uses=1]
|
|
%arg3 = getelementptr [1 x i8]* @null, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%rslt2 = call i8* @strncat( i8* %rslt1, i8* %arg3, i32 42 ) ; <i8*> [#uses=1]
|
|
%arg4 = getelementptr [7 x i8]* @null_hello, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%rslt3 = call i8* @strncat( i8* %rslt2, i8* %arg4, i32 42 ) ; <i8*> [#uses=1]
|
|
call i32 @puts( i8* %rslt3 ) ; <i32>:1 [#uses=0]
|
|
ret i32 0
|
|
}
|