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
|
; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s
define void @t1(i8* nocapture %c) nounwind optsize {
entry:
; CHECK-LABEL: t1:
; CHECK: str wzr, [x0, #8]
; CHECK: str xzr, [x0]
call void @llvm.memset.p0i8.i64(i8* %c, i8 0, i64 12, i32 8, i1 false)
ret void
}
define void @t2() nounwind ssp {
entry:
; CHECK-LABEL: t2:
; CHECK: strh wzr, [sp, #32]
; CHECK: stp xzr, xzr, [sp, #16]
; CHECK: str xzr, [sp, #8]
%buf = alloca [26 x i8], align 1
%0 = getelementptr inbounds [26 x i8], [26 x i8]* %buf, i32 0, i32 0
call void @llvm.memset.p0i8.i32(i8* %0, i8 0, i32 26, i32 1, i1 false)
call void @something(i8* %0) nounwind
ret void
}
declare void @something(i8*) nounwind
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
|
