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31 lines
1.5 KiB
LLVM
31 lines
1.5 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 -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 i64* null ; <i64**> [#uses=2]
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; CHECK: @TOP = internal unnamed_addr global i64* null
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@channelColumns = internal global i64 0 ; <i64*> [#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, i64* @channelColumns, align 8
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%1 = load i64* @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 i8* @malloc(i64 %3) nounwind ; <i8*> [#uses=1]
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; CHECK: call noalias i8* @malloc
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%5 = bitcast i8* %4 to i64* ; <i64*> [#uses=1]
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store i64* %5, i64** @TOP, align 8
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%6 = load i64** @TOP, align 8 ; <i64*> [#uses=1]
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%7 = getelementptr inbounds i64* %6, i64 13 ; <i64*> [#uses=1]
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store i64 0, i64* %7, align 8
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ret void
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}
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declare noalias i8* @malloc(i64) nounwind
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