1 ; Test ensures that non-optimizable array mallocs are not optimized; specifically
2 ; GlobalOpt was treating a non-optimizable array malloc as a non-array malloc
3 ; and optimizing the global object that the malloc was stored to as a single
4 ; element global. The global object @TOP in this test should not be optimized.
5 ; RUN: opt < %s -passes=globalopt -S | FileCheck %s
7 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"
8 target triple = "x86_64-apple-darwin10.0"
10 @TOP = internal global ptr null ; <ptr> [#uses=2]
11 ; CHECK: @TOP = internal unnamed_addr global ptr null
12 @channelColumns = internal global i64 0 ; <ptr> [#uses=2]
14 ; Derived from @DescribeChannel() in yacr2
15 define void @test() nounwind ssp {
16 store i64 2335, ptr @channelColumns, align 8
17 %1 = load i64, ptr @channelColumns, align 8 ; <i64> [#uses=1]
18 %2 = shl i64 %1, 3 ; <i64> [#uses=1]
19 %3 = add i64 %2, 8 ; <i64> [#uses=1]
20 %4 = call noalias ptr @malloc(i64 %3) nounwind ; <ptr> [#uses=1]
21 ; CHECK: call noalias ptr @malloc
22 store ptr %4, ptr @TOP, align 8
23 %5 = load ptr, ptr @TOP, align 8 ; <ptr> [#uses=1]
24 %6 = getelementptr inbounds i64, ptr %5, i64 13 ; <ptr> [#uses=1]
25 store i64 0, ptr %6, align 8
29 declare noalias ptr @malloc(i64) nounwind