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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-07-18 08:34:51 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-07-18 08:34:51 +0000 |
| commit | 62bb4134358d0d1f8b892cf0df42d758ac8e19e7 (patch) | |
| tree | 4afd1b2202fed0a9c8663563e0a6e1b03c5312a9 | |
| parent | 4dc31369eb711344055a69f6d9663b584b2a032d (diff) | |
Fix simplifylibcalls memset recognition to work on 64-bit platforms
where int is 32 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76293 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyLibCalls.cpp | 4 | ||||
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/memset-64.ll | 12 |
2 files changed, 14 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index f285406b19..7e6b353462 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -994,12 +994,12 @@ struct VISIBILITY_HIDDEN MemSetOpt : public LibCallOptimization { const FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || !isa<PointerType>(FT->getParamType(0)) || - FT->getParamType(1) != TD->getIntPtrType() || + !isa<IntegerType>(FT->getParamType(1)) || FT->getParamType(2) != TD->getIntPtrType()) return 0; // memset(p, v, n) -> llvm.memset(p, v, n, 1) - Value *Val = B.CreateTrunc(CI->getOperand(2), Type::Int8Ty); + Value *Val = B.CreateIntCast(CI->getOperand(2), Type::Int8Ty, false); EmitMemSet(CI->getOperand(1), Val, CI->getOperand(3), B); return CI->getOperand(1); } diff --git a/test/Transforms/SimplifyLibCalls/memset-64.ll b/test/Transforms/SimplifyLibCalls/memset-64.ll new file mode 100644 index 0000000000..a6a277e080 --- /dev/null +++ b/test/Transforms/SimplifyLibCalls/memset-64.ll @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | grep {llvm.memset} +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" +target triple = "x86_64-pc-linux-gnu" + +define void @a(i8* %x) nounwind { +entry: + %call = call i8* @memset(i8* %x, i32 1, i64 100) ; <i8*> [#uses=0] + ret void +} + +declare i8* @memset(i8*, i32, i64) + |