31 lines
1.5 KiB
LLVM
31 lines
1.5 KiB
LLVM
; 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
|