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 -globalopt -S | FileCheck %s 6 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" 9 10 @TOP = internal global i64* null ; <i64**> [#uses=2] 11 ; CHECK: @TOP = internal unnamed_addr global i64* null 12 @channelColumns = internal global i64 0 ; <i64*> [#uses=2] 13 14 ; Derived from @DescribeChannel() in yacr2 15 define void @test() nounwind ssp { 16 store i64 2335, i64* @channelColumns, align 8 17 %1 = load i64* @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 i8* @malloc(i64 %3) nounwind ; <i8*> [#uses=1] 21 ; CHECK: call noalias i8* @malloc 22 %5 = bitcast i8* %4 to i64* ; <i64*> [#uses=1] 23 store i64* %5, i64** @TOP, align 8 24 %6 = load i64** @TOP, align 8 ; <i64*> [#uses=1] 25 %7 = getelementptr inbounds i64* %6, i64 13 ; <i64*> [#uses=1] 26 store i64 0, i64* %7, align 8 27 ret void 28 } 29 30 declare noalias i8* @malloc(i64) nounwind 31
