File: MemMove.ll

package info (click to toggle)
llvm 2.2-12
  • links: PTS, VCS
  • area: main
  • in suites: lenny
  • size: 38,648 kB
  • ctags: 28,258
  • sloc: cpp: 215,479; sh: 12,132; ansic: 10,002; yacc: 5,525; perl: 2,352; ml: 1,580; makefile: 956; pascal: 718; lex: 602; exp: 320; ada: 193; lisp: 160; csh: 116; objc: 59; python: 59; tcl: 20
file content (22 lines) | stat: -rw-r--r-- 927 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; Test that the StrCatOptimizer works correctly
; RUN: llvm-upgrade < %s | llvm-as | opt -constprop -simplify-libcalls | \
; RUN:   llvm-dis | not grep {call.*llvm.memmove.i32}

declare void %llvm.memmove.i32(sbyte*,sbyte*,uint,uint)
%h = constant [2 x sbyte] c"h\00"
%hel = constant [4 x sbyte] c"hel\00"
%hello_u = constant [8 x sbyte] c"hello_u\00"

implementation   ; Functions:

int %main () {
  %h_p = getelementptr [2 x sbyte]* %h, int 0, int 0
  %hel_p = getelementptr [4 x sbyte]* %hel, int 0, int 0
  %hello_u_p = getelementptr [8 x sbyte]* %hello_u, int 0, int 0
  %target = alloca [1024 x sbyte]
  %target_p = getelementptr [1024 x sbyte]* %target, int 0, int 0
  call void %llvm.memmove.i32(sbyte* %target_p, sbyte* %h_p, uint 2, uint 2)
  call void %llvm.memmove.i32(sbyte* %target_p, sbyte* %hel_p, uint 4, uint 4)
  call void %llvm.memmove.i32(sbyte* %target_p, sbyte* %hello_u_p, uint 8, uint 8)
  ret int 0
}