| ; Test ensures that non-optimizable array mallocs are not optimized; specifically |
| ; GlobalOpt was treating a non-optimizable array malloc as a non-array malloc |
| ; and optimizing the global object that the malloc was stored to as a single |
| ; element global. The global object @TOP in this test should not be optimized. |
| ; RUN: opt < %s -globalopt -S | FileCheck %s |
| |
| 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" |
| target triple = "x86_64-apple-darwin10.0" |
| |
| @TOP = internal global i64* null ; <i64**> [#uses=2] |
| ; CHECK: @TOP = internal unnamed_addr global i64* null |
| @channelColumns = internal global i64 0 ; <i64*> [#uses=2] |
| |
| ; Derived from @DescribeChannel() in yacr2 |
| define void @test() nounwind ssp { |
| store i64 2335, i64* @channelColumns, align 8 |
| %1 = load i64* @channelColumns, align 8 ; <i64> [#uses=1] |
| %2 = shl i64 %1, 3 ; <i64> [#uses=1] |
| %3 = add i64 %2, 8 ; <i64> [#uses=1] |
| %4 = call noalias i8* @malloc(i64 %3) nounwind ; <i8*> [#uses=1] |
| ; CHECK: call noalias i8* @malloc |
| %5 = bitcast i8* %4 to i64* ; <i64*> [#uses=1] |
| store i64* %5, i64** @TOP, align 8 |
| %6 = load i64** @TOP, align 8 ; <i64*> [#uses=1] |
| %7 = getelementptr inbounds i64* %6, i64 13 ; <i64*> [#uses=1] |
| store i64 0, i64* %7, align 8 |
| ret void |
| } |
| |
| declare noalias i8* @malloc(i64) nounwind |
