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| author | Owen Anderson <resistor@mac.com> | 2010-10-15 22:52:12 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-10-15 22:52:12 +0000 |
| commit | 6549121c660dfd18361cd3daf6c766bee80d3097 (patch) | |
| tree | 99c4825e6aef6cf271d2b36bdee43e67cfdd2d73 /test/Transforms/MemCpyOpt | |
| parent | 00ed59a968f3a41c36c5c01f6b3215f539d679a8 (diff) | |
| download | llvm-6549121c660dfd18361cd3daf6c766bee80d3097.tar.gz llvm-6549121c660dfd18361cd3daf6c766bee80d3097.tar.bz2 llvm-6549121c660dfd18361cd3daf6c766bee80d3097.tar.xz | |
Generalize MemCpyOpt's handling of call slot forwarding to function properly when the call slot
forwarding is implemented with a load/store pair rather than a memcpy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116637 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/MemCpyOpt')
| -rw-r--r-- | test/Transforms/MemCpyOpt/loadstore-sret.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Transforms/MemCpyOpt/loadstore-sret.ll b/test/Transforms/MemCpyOpt/loadstore-sret.ll new file mode 100644 index 0000000000..ebc11fc0fb --- /dev/null +++ b/test/Transforms/MemCpyOpt/loadstore-sret.ll @@ -0,0 +1,25 @@ +; RUN: opt -S < %s -memcpyopt | FileCheck %s +; <rdar://problem/8536696> + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-apple-darwin10.0.0" + +%"class.std::auto_ptr" = type { i32* } + +; CHECK: @_Z3foov +define void @_Z3foov(%"class.std::auto_ptr"* noalias nocapture sret %agg.result) ssp { +_ZNSt8auto_ptrIiED1Ev.exit: + %temp.lvalue = alloca %"class.std::auto_ptr", align 8 +; CHECK: call void @_Z3barv(%"class.std::auto_ptr"* sret %agg.result) + call void @_Z3barv(%"class.std::auto_ptr"* sret %temp.lvalue) + %tmp.i.i = getelementptr inbounds %"class.std::auto_ptr"* %temp.lvalue, i64 0, i32 0 +; CHECK-NOT: load + %tmp2.i.i = load i32** %tmp.i.i, align 8 + %tmp.i.i4 = getelementptr inbounds %"class.std::auto_ptr"* %agg.result, i64 0, i32 0 +; CHECK-NOT: store + store i32* %tmp2.i.i, i32** %tmp.i.i4, align 8 +; CHECK: ret void + ret void +} + +declare void @_Z3barv(%"class.std::auto_ptr"* sret) |