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| author | Meador Inge <meadori@codesourcery.com> | 2012-10-31 00:20:56 +0000 |
|---|---|---|
| committer | Meador Inge <meadori@codesourcery.com> | 2012-10-31 00:20:56 +0000 |
| commit | e6d781fd3cf9aa30d1c533308d1fdb6738e4f89f (patch) | |
| tree | 56689c30ddf618297c445e7dccdd0ca559e98df6 /test/Transforms/SimplifyLibCalls | |
| parent | fa9d1372c99e5b74406a606756ba77d620d575bb (diff) | |
| download | external_llvm-e6d781fd3cf9aa30d1c533308d1fdb6738e4f89f.zip external_llvm-e6d781fd3cf9aa30d1c533308d1fdb6738e4f89f.tar.gz external_llvm-e6d781fd3cf9aa30d1c533308d1fdb6738e4f89f.tar.bz2 | |
instcombine: Migrate stpcpy optimizations
This patch migrates the stpcpy optimizations from the simplify-libcalls
pass into the instcombine library call simplifier. Note that the
__stpcpy_chk simplifications were migrated in a previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167083 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SimplifyLibCalls')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/StpCpy.ll | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/test/Transforms/SimplifyLibCalls/StpCpy.ll b/test/Transforms/SimplifyLibCalls/StpCpy.ll deleted file mode 100644 index 914b095..0000000 --- a/test/Transforms/SimplifyLibCalls/StpCpy.ll +++ /dev/null @@ -1,43 +0,0 @@ -; Test that the StpCpyOptimizer 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* @stpcpy(i8*, i8*) - -declare i8* @__stpcpy_chk(i8*, i8*, i32) nounwind - -declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly - -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* @stpcpy( 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* @__stpcpy_chk(i8* %arg1, i8* %arg2, i32 %tmp1) -; CHECK: @__memcpy_chk - ret i32 0 -} - -define i8* @t3(i8* %arg) { -; CHECK: @t3 - %stpcpy = tail call i8* @stpcpy(i8* %arg, i8* %arg) -; CHECK: [[LEN:%[a-z]+]] = call i32 @strlen(i8* %arg) -; CHECK-NEXT: getelementptr inbounds i8* %arg, i32 [[LEN]] - ret i8* %stpcpy -} |