Move a DenseMap's declaration outside of a loop, and just call

[oota-llvm.git] / test / Transforms / InstCombine / memmove.ll

diff --git a/test/Transforms/InstCombine/memmove.ll b/test/Transforms/InstCombine/memmove.ll
index 66ed174ad546d971e974e1ed79e0f1382d5e5c01..09ec67d2654eadb947b6ee6739f47aa6443dab34 100644 (file)
--- a/test/Transforms/InstCombine/memmove.ll
+++ b/test/Transforms/InstCombine/memmove.ll
@@ -4,6 +4,10 @@
 ; RUN:    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]
+
 
 declare void @llvm.memmove.i32(i8*, i8*, i32, i32)
 
@@ -17,3 +21,22 @@ define void @test2(i8* %A, i32 %N) {
        call void @llvm.memmove.i32( i8* %A, i8* getelementptr ([33 x i8]* @S, i32 0, i32 0), i32 %N, i32 1 )
        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.i32( i8* %target_p, i8* %h_p, i32 2, i32 2 )
+       call void @llvm.memmove.i32( i8* %target_p, i8* %hel_p, i32 4, i32 4 )
+       call void @llvm.memmove.i32( i8* %target_p, i8* %hello_u_p, i32 8, i32 8 )
+       ret i32 0
+}
+
+; PR2370
+define void @test4(i8* %a) {
+        tail call void @llvm.memmove.i32( i8* %a, i8* %a, i32 100, i32 1 )
+        ret void
+}
+