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f6eb7e3175
As a follow-up to r210375 which canonicalizes addrspacecast instructions, this patch canonicalizes addrspacecast constant expressions. Given clang uses ConstantExpr::getAddrSpaceCast to emit addrspacecast cosntant expressions, this patch is also a step towards having the frontend emit canonicalized addrspacecasts. Piggyback a minor refactor in InstCombineCasts.cpp Update three affected tests in addrspacecast-alias.ll, access-non-generic.ll and constant-fold-gep.ll and added one new test in constant-fold-address-space-pointer.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211004 91177308-0d34-0410-b5e6-96231b3b80d8
8 lines
422 B
LLVM
8 lines
422 B
LLVM
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; Test that global aliases are allowed to be constant addrspacecast
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@i = internal addrspace(1) global i8 42
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@ia = alias internal addrspacecast (i8 addrspace(1)* @i to i8 addrspace(2)* addrspace(3)*)
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; CHECK: @ia = alias internal addrspacecast (i8 addrspace(2)* addrspace(1)* bitcast (i8 addrspace(1)* @i to i8 addrspace(2)* addrspace(1)*) to i8 addrspace(2)* addrspace(3)*)
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