PR11061: Make simplifylibcalls fold strcmp("", x) correctly.

[oota-llvm.git] / test / Transforms / SimplifyLibCalls / StrCat.ll

diff --git a/test/Transforms/SimplifyLibCalls/StrCat.ll b/test/Transforms/SimplifyLibCalls/StrCat.ll
index 06bc833e5c925c5d9d5e236b582ac874ac0bbe32..4e3d0ab7f40fa2d6eceda310b0c666e01ba42e8f 100644 (file)
--- a/test/Transforms/SimplifyLibCalls/StrCat.ll
+++ b/test/Transforms/SimplifyLibCalls/StrCat.ll
@@ -1,25 +1,33 @@
 ; Test that the StrCatOptimizer works correctly
-; RUN: llvm-upgrade < %s | llvm-as | opt -simplify-libcalls | llvm-dis | \
+; PR3661
+; RUN: opt < %s -simplify-libcalls -S | \
 ; RUN:   not grep {call.*strcat}
+; RUN: opt < %s -simplify-libcalls -S | \
+; RUN:   grep {puts.*%arg1}
 
-declare sbyte* %strcat(sbyte*,sbyte*)
-declare int %puts(sbyte*)
-%hello = constant [6 x sbyte] c"hello\00"
-%null = constant [1 x sbyte] c"\00"
-%null_hello = constant [7 x sbyte] c"\00hello\00"
+; This transformation requires the pointer size, as it assumes that size_t is
+; the size of a pointer.
+target datalayout = "-p:64:64:64"
 
-implementation   ; Functions:
+@hello = constant [6 x i8] c"hello\00"         ; <[6 x i8]*> [#uses=1]
+@null = constant [1 x i8] zeroinitializer              ; <[1 x i8]*> [#uses=1]
+@null_hello = constant [7 x i8] c"\00hello\00"         ; <[7 x i8]*> [#uses=1]
 
-int %main () {
-  %target = alloca [1024 x sbyte]
-  %arg1 = getelementptr [1024 x sbyte]* %target, int 0, int 0
-  store sbyte 0, sbyte* %arg1
-  %arg2 = getelementptr [6 x sbyte]* %hello, int 0, int 0
-  %rslt1 = call sbyte* %strcat(sbyte* %arg1, sbyte* %arg2)
-  %arg3 = getelementptr [1 x sbyte]* %null, int 0, int 0
-  %rslt2 = call sbyte* %strcat(sbyte* %rslt1, sbyte* %arg3)
-  %arg4 = getelementptr [7 x sbyte]* %null_hello, int 0, int 0
-  %rslt3 = call sbyte* %strcat(sbyte* %rslt2, sbyte* %arg4)
-  call int %puts(sbyte* %rslt3)
-  ret int 0
+declare i8* @strcat(i8*, i8*)
+
+declare i32 @puts(i8*)
+
+define i32 @main() {
+       %target = alloca [1024 x i8]            ; <[1024 x i8]*> [#uses=1]
+       %arg1 = getelementptr [1024 x i8]* %target, i32 0, i32 0                ; <i8*> [#uses=2]
+       store i8 0, i8* %arg1
+       %arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0            ; <i8*> [#uses=1]
+       %rslt1 = call i8* @strcat( i8* %arg1, i8* %arg2 )               ; <i8*> [#uses=1]
+       %arg3 = getelementptr [1 x i8]* @null, i32 0, i32 0             ; <i8*> [#uses=1]
+       %rslt2 = call i8* @strcat( i8* %rslt1, i8* %arg3 )              ; <i8*> [#uses=1]
+       %arg4 = getelementptr [7 x i8]* @null_hello, i32 0, i32 0               ; <i8*> [#uses=1]
+       %rslt3 = call i8* @strcat( i8* %rslt2, i8* %arg4 )              ; <i8*> [#uses=1]
+       call i32 @puts( i8* %rslt3 )            ; <i32>:1 [#uses=0]
+       ret i32 0
 }
+