| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 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, 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*, i64** @TOP, align 8 ; <i64*> [#uses=1] |
| 25 | %7 = getelementptr inbounds i64, 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 |