llvm-6502/test/Assembler/addrspacecast-alias.ll
Jingyue Wu f6eb7e3175 Canonicalize addrspacecast ConstExpr between different pointer types
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
2014-06-15 21:40:57 +00:00

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422 B
LLVM

; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; Test that global aliases are allowed to be constant addrspacecast
@i = internal addrspace(1) global i8 42
@ia = alias internal addrspacecast (i8 addrspace(1)* @i to i8 addrspace(2)* addrspace(3)*)
; 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)*)