diff options
| author | Hal Finkel <hfinkel@anl.gov> | 2012-11-12 21:21:02 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-11-12 21:21:02 +0000 |
| commit | 86c88c938aec8006d2ce83325ec1f31e1154620b (patch) | |
| tree | ef60bca1c51bdeb69234a232de93a53c8ed6f006 /test/Transforms/BBVectorize | |
| parent | 6996fd0b543cf8bd4a0d4e09e80a168f0ae052c5 (diff) | |
| download | llvm-86c88c938aec8006d2ce83325ec1f31e1154620b.tar.gz llvm-86c88c938aec8006d2ce83325ec1f31e1154620b.tar.bz2 llvm-86c88c938aec8006d2ce83325ec1f31e1154620b.tar.xz | |
BBVectorize: Use a more sophisticated check for input cost
The old checking code, which assumed that input shuffles and insert-elements
could always be folded (and thus were free) is too simple.
This can only happen in special circumstances.
Using the simple check caused infinite recursion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167750 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/BBVectorize')
| -rw-r--r-- | test/Transforms/BBVectorize/X86/sh-rec.ll | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/Transforms/BBVectorize/X86/sh-rec.ll b/test/Transforms/BBVectorize/X86/sh-rec.ll new file mode 100644 index 0000000000..1e0492c2a8 --- /dev/null +++ b/test/Transforms/BBVectorize/X86/sh-rec.ll @@ -0,0 +1,54 @@ +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-S128" +target triple = "x86_64-unknown-linux-gnu" +; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -bb-vectorize -S | FileCheck %s + +define void @ptoa() nounwind uwtable { +entry: + %call = call i8* @malloc() nounwind + br i1 undef, label %return, label %if.end10 + +if.end10: ; preds = %entry + %incdec.ptr = getelementptr inbounds i8* %call, i64 undef + %call17 = call i32 @ptou() nounwind + %incdec.ptr26.1 = getelementptr inbounds i8* %incdec.ptr, i64 -2 + store i8 undef, i8* %incdec.ptr26.1, align 1 + %div27.1 = udiv i32 %call17, 100 + %rem.2 = urem i32 %div27.1, 10 + %add2230.2 = or i32 %rem.2, 48 + %conv25.2 = trunc i32 %add2230.2 to i8 + %incdec.ptr26.2 = getelementptr inbounds i8* %incdec.ptr, i64 -3 + store i8 %conv25.2, i8* %incdec.ptr26.2, align 1 + %incdec.ptr26.3 = getelementptr inbounds i8* %incdec.ptr, i64 -4 + store i8 undef, i8* %incdec.ptr26.3, align 1 + %div27.3 = udiv i32 %call17, 10000 + %rem.4 = urem i32 %div27.3, 10 + %add2230.4 = or i32 %rem.4, 48 + %conv25.4 = trunc i32 %add2230.4 to i8 + %incdec.ptr26.4 = getelementptr inbounds i8* %incdec.ptr, i64 -5 + store i8 %conv25.4, i8* %incdec.ptr26.4, align 1 + %div27.4 = udiv i32 %call17, 100000 + %rem.5 = urem i32 %div27.4, 10 + %add2230.5 = or i32 %rem.5, 48 + %conv25.5 = trunc i32 %add2230.5 to i8 + %incdec.ptr26.5 = getelementptr inbounds i8* %incdec.ptr, i64 -6 + store i8 %conv25.5, i8* %incdec.ptr26.5, align 1 + %incdec.ptr26.6 = getelementptr inbounds i8* %incdec.ptr, i64 -7 + store i8 0, i8* %incdec.ptr26.6, align 1 + %incdec.ptr26.7 = getelementptr inbounds i8* %incdec.ptr, i64 -8 + store i8 undef, i8* %incdec.ptr26.7, align 1 + %div27.7 = udiv i32 %call17, 100000000 + %rem.8 = urem i32 %div27.7, 10 + %add2230.8 = or i32 %rem.8, 48 + %conv25.8 = trunc i32 %add2230.8 to i8 + %incdec.ptr26.8 = getelementptr inbounds i8* %incdec.ptr, i64 -9 + store i8 %conv25.8, i8* %incdec.ptr26.8, align 1 + unreachable + +return: ; preds = %entry + ret void +; CHECK: @ptoa +} + +declare noalias i8* @malloc() nounwind + +declare i32 @ptou() |