Mercurial > hg > CbC > CbC_llvm
view llvm/test/Transforms/NewGVN/2008-02-12-UndefLoad.ll @ 201:a96fbbdf2d0f
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 04 Jun 2021 21:07:06 +0900 |
parents | 1d019706d866 |
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; XFAIL: * ; RUN: opt < %s -newgvn -S | FileCheck %s ; PR1996 %struct.anon = type { i32, i8, i8, i8, i8 } define i32 @a() { entry: %c = alloca %struct.anon ; <%struct.anon*> [#uses=2] %tmp = getelementptr %struct.anon, %struct.anon* %c, i32 0, i32 0 ; <i32*> [#uses=1] %tmp1 = getelementptr i32, i32* %tmp, i32 1 ; <i32*> [#uses=2] %tmp2 = load i32, i32* %tmp1, align 4 ; <i32> [#uses=1] ; CHECK-NOT: load %tmp3 = or i32 %tmp2, 11 ; <i32> [#uses=1] %tmp4 = and i32 %tmp3, -21 ; <i32> [#uses=1] store i32 %tmp4, i32* %tmp1, align 4 %call = call i32 (...) @x( %struct.anon* %c ) ; <i32> [#uses=0] ret i32 undef } declare i32 @x(...)