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llvm-mirror/test/Transforms/InstCombine/memmove.ll
Chandler Carruth 5d3a0ce4e5 Fix the remaining TCL-style quotes found in the testsuite. This is
another mechanical change accomplished though the power of terrible Perl
scripts.

I have manually switched some "s to 's to make escaping simpler.

While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.

Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/

llvm-svn: 159547
2012-07-02 19:09:46 +00:00

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