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https://github.com/c64scene-ar/llvm-6502.git
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1afcace3a3
patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
876 B
LLVM
28 lines
876 B
LLVM
; RUN: llvm-link %s %p/unnamed-addr1-b.ll -S -o - | sort | FileCheck %s
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; Only in this file
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@a = common global i32 0
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; CHECK: @a = common global i32 0
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@b = common unnamed_addr global i32 0
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; CHECK: @b = common unnamed_addr global i32 0
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; Other file has unnamed_addr definition
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@c = common unnamed_addr global i32 0
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; CHECK: @c = common unnamed_addr global i32 0
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@d = external global i32
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; CHECK: @d = unnamed_addr global i32 42
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@e = external unnamed_addr global i32
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; CHECK: @e = unnamed_addr global i32 42
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@f = weak global i32 42
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; CHECK: @f = unnamed_addr global i32 42
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; Other file has non-unnamed_addr definition
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@g = common unnamed_addr global i32 0
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; CHECK: @g = common unnamed_addr global i32 0
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@h = external global i32
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; CHECK: @h = global i32 42
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@i = external unnamed_addr global i32
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; CHECK: @i = global i32 42
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@j = weak global i32 42
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; CHECK: @j = global i32 42
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