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| author | Meador Inge <meadori@codesourcery.com> | 2012-10-18 18:12:40 +0000 |
|---|---|---|
| committer | Meador Inge <meadori@codesourcery.com> | 2012-10-18 18:12:40 +0000 |
| commit | 0c41d57b09884b92f988cb88553eaa7c77819d4b (patch) | |
| tree | e7e0a193da3c7773595db3dfce083614dc597bd7 /test/Transforms/SimplifyLibCalls/StrCpy.ll | |
| parent | 77ed3424e41cfb06600dbc7c138a565be71cfb95 (diff) | |
| download | external_llvm-0c41d57b09884b92f988cb88553eaa7c77819d4b.tar.gz external_llvm-0c41d57b09884b92f988cb88553eaa7c77819d4b.tar.bz2 external_llvm-0c41d57b09884b92f988cb88553eaa7c77819d4b.zip | |
instcombine: Migrate strcpy optimizations
This patch migrates the strcpy optimizations from the simplify-libcalls pass
into the instcombine library call simplifier. Note also that StrCpyChkOpt
has been updated with a few simplifications that were being done in the
simplify-libcalls version of StrCpyOpt, but not in the migrated implementation
of StrCpyOpt. There is no reason to overload StrCpyOpt with fortified and
regular simplifications in the new model since there is already a dedicated
simplifier for __strcpy_chk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166198 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SimplifyLibCalls/StrCpy.ll')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/StrCpy.ll | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/test/Transforms/SimplifyLibCalls/StrCpy.ll b/test/Transforms/SimplifyLibCalls/StrCpy.ll deleted file mode 100644 index 83406ff8f8..0000000000 --- a/test/Transforms/SimplifyLibCalls/StrCpy.ll +++ /dev/null @@ -1,37 +0,0 @@ -; Test that the StrCpyOptimizer works correctly -; RUN: opt < %s -simplify-libcalls -S | FileCheck %s - -; This transformation requires the pointer size, as it assumes that size_t is -; the size of a pointer. -target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32" - -@hello = constant [6 x i8] c"hello\00" - -declare i8* @strcpy(i8*, i8*) - -declare i8* @__strcpy_chk(i8*, i8*, i32) nounwind - -declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly - -; rdar://6839935 - -define i32 @t1() { -; CHECK: @t1 - %target = alloca [1024 x i8] - %arg1 = getelementptr [1024 x i8]* %target, i32 0, i32 0 - %arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0 - %rslt1 = call i8* @strcpy( i8* %arg1, i8* %arg2 ) -; CHECK: @llvm.memcpy.p0i8.p0i8.i32 - ret i32 0 -} - -define i32 @t2() { -; CHECK: @t2 - %target = alloca [1024 x i8] - %arg1 = getelementptr [1024 x i8]* %target, i32 0, i32 0 - %arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0 - %tmp1 = call i32 @llvm.objectsize.i32(i8* %arg1, i1 false) - %rslt1 = call i8* @__strcpy_chk(i8* %arg1, i8* %arg2, i32 %tmp1) -; CHECK: @__memcpy_chk - ret i32 0 -} |