mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
ad5400fa72
for pre-2.9 bitcode files. We keep x86 unaligned loads, movnt, crc32, and the target indep prefetch change. As usual, updating the testsuite is a PITA. llvm-svn: 133337
40 lines
1.7 KiB
LLVM
40 lines
1.7 KiB
LLVM
; This test makes sure that memmove instructions are properly eliminated.
|
|
;
|
|
; RUN: opt < %s -instcombine -S | not grep {call void @llvm.memmove}
|
|
|
|
@S = internal constant [33 x i8] c"panic: restorelist inconsistency\00" ; <[33 x i8]*> [#uses=1]
|
|
@h = constant [2 x i8] c"h\00" ; <[2 x i8]*> [#uses=1]
|
|
@hel = constant [4 x i8] c"hel\00" ; <[4 x i8]*> [#uses=1]
|
|
@hello_u = constant [8 x i8] c"hello_u\00" ; <[8 x i8]*> [#uses=1]
|
|
|
|
define void @test1(i8* %A, i8* %B, i32 %N) {
|
|
call void @llvm.memmove.p0i8.p0i8.i32(i8* %A, i8* %B, i32 0, i32 1, i1 false)
|
|
ret void
|
|
}
|
|
|
|
define void @test2(i8* %A, i32 %N) {
|
|
;; dest can't alias source since we can't write to source!
|
|
call void @llvm.memmove.p0i8.p0i8.i32(i8* %A, i8* getelementptr inbounds ([33 x i8]* @S, i32 0, i32 0), i32 %N, i32 1, i1 false)
|
|
ret void
|
|
}
|
|
|
|
define i32 @test3() {
|
|
%h_p = getelementptr [2 x i8]* @h, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%hel_p = getelementptr [4 x i8]* @hel, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%hello_u_p = getelementptr [8 x i8]* @hello_u, i32 0, i32 0 ; <i8*> [#uses=1]
|
|
%target = alloca [1024 x i8] ; <[1024 x i8]*> [#uses=1]
|
|
%target_p = getelementptr [1024 x i8]* %target, i32 0, i32 0 ; <i8*> [#uses=3]
|
|
call void @llvm.memmove.p0i8.p0i8.i32(i8* %target_p, i8* %h_p, i32 2, i32 2, i1 false)
|
|
call void @llvm.memmove.p0i8.p0i8.i32(i8* %target_p, i8* %hel_p, i32 4, i32 4, i1 false)
|
|
call void @llvm.memmove.p0i8.p0i8.i32(i8* %target_p, i8* %hello_u_p, i32 8, i32 8, i1 false)
|
|
ret i32 0
|
|
}
|
|
|
|
; PR2370
|
|
define void @test4(i8* %a) {
|
|
tail call void @llvm.memmove.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
|
|
ret void
|
|
}
|
|
|
|
declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
|