d10b76552f
The data-layout independent constant folding currently has some rather gnarly code for canonicalizing GEP indices to reduce "notional overindexing", and then infers inbounds based on that canonicalization. Now that we canonicalize to i8 GEPs, this canonicalization is essentially useless, as we'll discard it as soon as the GEP hits the data-layout aware constant folder anyway. As such, I'd like to remove this code entirely. This shouldn't have any impact on optimization capabilities.
58 lines
1.5 KiB
LLVM
58 lines
1.5 KiB
LLVM
; RUN: rm -rf %t && split-file %s %t
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; RUN: llvm-link %t/1.ll -S -o - | FileCheck %s --check-prefix=CHECK1
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;; The source doesn't have comdat.
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; RUN: llvm-link %t/2.ll -S -o - | FileCheck %s --check-prefix=CHECK2
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;; The leader is an alias.
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; RUN: llvm-link %t/3.ll %t/3-aux.ll -S -o - | FileCheck %s
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; RUN: llvm-link %t/3-aux.ll %t/3.ll -S -o - | FileCheck %s
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;--- 1.ll
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$c = comdat any
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@a = alias void (), ptr @f
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define internal void @f() comdat($c) {
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ret void
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}
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; CHECK1-DAG: $c = comdat any
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; CHECK1-DAG: @a = alias void (), ptr @f
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; CHECK1-DAG: define internal void @f() comdat($c)
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$f2 = comdat largest
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define linkonce_odr void @f2() comdat($f2) {
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ret void
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}
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define void @f3() comdat($f2) {
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ret void
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}
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; CHECK1-DAG: $f2 = comdat largest
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; CHECK1-DAG: define linkonce_odr void @f2()
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;--- 2.ll
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$c = comdat largest
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; CHECK2: @c = global i32 0, comdat
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@c = global i32 0, comdat
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;--- 3.ll
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target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
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$foo = comdat largest
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@foo = linkonce_odr unnamed_addr constant [1 x ptr] [ptr @bar], comdat($foo)
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; CHECK: @foo = alias ptr, getelementptr ([2 x ptr], ptr @some_name, i32 0, i32 1)
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declare void @bar() unnamed_addr
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;--- 3-aux.ll
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target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
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$foo = comdat largest
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@zed = external constant i8
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@some_name = private unnamed_addr constant [2 x ptr] [ptr @zed, ptr @bar], comdat($foo)
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@foo = alias ptr, getelementptr([2 x ptr], ptr @some_name, i32 0, i32 1)
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declare void @bar() unnamed_addr
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