derek.holloway
7502bf64a4
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30 lines
1.4 KiB
LLVM
30 lines
1.4 KiB
LLVM
; Test ensures that non-optimizable array mallocs are not optimized; specifically
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; GlobalOpt was treating a non-optimizable array malloc as a non-array malloc
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; and optimizing the global object that the malloc was stored to as a single
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; element global. The global object @TOP in this test should not be optimized.
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; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-apple-darwin10.0"
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@TOP = internal global ptr null ; <ptr> [#uses=2]
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; CHECK: @TOP = internal unnamed_addr global ptr null
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@channelColumns = internal global i64 0 ; <ptr> [#uses=2]
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; Derived from @DescribeChannel() in yacr2
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define void @test() nounwind ssp {
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store i64 2335, ptr @channelColumns, align 8
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%1 = load i64, ptr @channelColumns, align 8 ; <i64> [#uses=1]
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%2 = shl i64 %1, 3 ; <i64> [#uses=1]
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%3 = add i64 %2, 8 ; <i64> [#uses=1]
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%4 = call noalias ptr @malloc(i64 %3) nounwind ; <ptr> [#uses=1]
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; CHECK: call noalias ptr @malloc
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store ptr %4, ptr @TOP, align 8
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%5 = load ptr, ptr @TOP, align 8 ; <ptr> [#uses=1]
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%6 = getelementptr inbounds i64, ptr %5, i64 13 ; <ptr> [#uses=1]
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store i64 0, ptr %6, align 8
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ret void
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}
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declare noalias ptr @malloc(i64) nounwind
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