From 73d8a5864fe8c52be2b710c10ec155019738aad5 Mon Sep 17 00:00:00 2001 From: Meador Inge Date: Sat, 13 Oct 2012 16:45:32 +0000 Subject: instcombine: Migrate strcat and strncat optimizations This patch migrates the strcat and strncat optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165874 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/SimplifyLibCalls/StrCat.ll | 33 ------------------------------ 1 file changed, 33 deletions(-) delete mode 100644 test/Transforms/SimplifyLibCalls/StrCat.ll (limited to 'test/Transforms/SimplifyLibCalls/StrCat.ll') diff --git a/test/Transforms/SimplifyLibCalls/StrCat.ll b/test/Transforms/SimplifyLibCalls/StrCat.ll deleted file mode 100644 index 3ea691a3cf..0000000000 --- a/test/Transforms/SimplifyLibCalls/StrCat.ll +++ /dev/null @@ -1,33 +0,0 @@ -; Test that the StrCatOptimizer works correctly -; PR3661 -; RUN: opt < %s -simplify-libcalls -S | \ -; RUN: not grep "call.*strcat" -; RUN: opt < %s -simplify-libcalls -S | \ -; RUN: grep "puts.*%arg1" - -; This transformation requires the pointer size, as it assumes that size_t is -; the size of a pointer. -target datalayout = "-p:64:64:64" - -@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] - -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 ; [#uses=2] - store i8 0, i8* %arg1 - %arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0 ; [#uses=1] - %rslt1 = call i8* @strcat( i8* %arg1, i8* %arg2 ) ; [#uses=1] - %arg3 = getelementptr [1 x i8]* @null, i32 0, i32 0 ; [#uses=1] - %rslt2 = call i8* @strcat( i8* %rslt1, i8* %arg3 ) ; [#uses=1] - %arg4 = getelementptr [7 x i8]* @null_hello, i32 0, i32 0 ; [#uses=1] - %rslt3 = call i8* @strcat( i8* %rslt2, i8* %arg4 ) ; [#uses=1] - call i32 @puts( i8* %rslt3 ) ; :1 [#uses=0] - ret i32 0 -} - -- cgit v1.2.3