1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
; RUN: opt < %s -rewrite-pnacl-library-calls -S | FileCheck %s
; RUN: opt < %s -rewrite-pnacl-library-calls -S | FileCheck %s -check-prefix=CLEANED
declare i8* @memcpy(i8*, i8*, i32)
declare i8* @memmove(i8*, i8*, i32)
declare i8* @memset(i8*, i32, i32)
; No declaration or definition of the library functions should remain, since
; the only uses of mem* functions are calls.
; CLEANED-NOT: @memcpy
; CLEANED-NOT: @memmove
; CLEANED-NOT: @memset
define i8* @call_memcpy(i8* %dest, i8* %src, i32 %len) {
%result = call i8* @memcpy(i8* %dest, i8* %src, i32 %len)
ret i8* %result
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 %len, i32 1, i1 false)
; CHECK: ret i8* %dest
}
define i8* @call_memmove(i8* %dest, i8* %src, i32 %len) {
%result = call i8* @memmove(i8* %dest, i8* %src, i32 %len)
ret i8* %result
; CHECK: call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 %len, i32 1, i1 false)
; CHECK: ret i8* %dest
}
define i8* @call_memset(i8* %dest, i32 %c, i32 %len) {
%result = call i8* @memset(i8* %dest, i32 %c, i32 %len)
ret i8* %result
; CHECK: %trunc_byte = trunc i32 %c to i8
; CHECK: call void @llvm.memset.p0i8.i32(i8* %dest, i8 %trunc_byte, i32 %len, i32 1, i1 false)
; CHECK: ret i8* %dest
}
; CHECK: declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1)
; CHECK: declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1)
; CHECK: declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1)
|
