mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
fade1bf838
because fwrite requires more arguments and thus extra MOVs are required. llvm-svn: 274753
29 lines
1.4 KiB
LLVM
29 lines
1.4 KiB
LLVM
; When optimising for size, we don't want to rewrite fputs to fwrite
|
|
; because it requires more arguments and thus extra MOVs are required.
|
|
;
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i32, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i32, i32, [40 x i8] }
|
|
%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
|
|
|
|
@.str = private unnamed_addr constant [10 x i8] c"mylog.txt\00", align 1
|
|
@.str.1 = private unnamed_addr constant [2 x i8] c"a\00", align 1
|
|
@.str.2 = private unnamed_addr constant [27 x i8] c"Hello world this is a test\00", align 1
|
|
|
|
define i32 @main() local_unnamed_addr #0 {
|
|
entry:
|
|
; CHECK-LABEL: @main(
|
|
; CHECK-NOT: call i64 @fwrite
|
|
; CHECK: call i32 @fputs
|
|
|
|
%call = tail call %struct._IO_FILE* @fopen(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i32 0, i32 0)) #2
|
|
%call1 = tail call i32 @fputs(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.2, i32 0, i32 0), %struct._IO_FILE* %call) #2
|
|
ret i32 0
|
|
}
|
|
|
|
declare noalias %struct._IO_FILE* @fopen(i8* nocapture readonly, i8* nocapture readonly) local_unnamed_addr #1
|
|
declare i32 @fputs(i8* nocapture readonly, %struct._IO_FILE* nocapture) local_unnamed_addr #1
|
|
|
|
attributes #0 = { nounwind optsize }
|
|
attributes #1 = { nounwind optsize }
|