Files
clang-p2996/llvm/test/Transforms/GlobalOpt/MallocSROA-section.ll
Fangrui Song 129f466e22 [GlobalOpt] Remove heap SROA
GlobalOpt implements a heap SROA (SROA for an malloc allocatated struct or array
of structs) which is largely undertested (heap-sra-[1234].ll are basically the
same test with very little difference) and does not trigger at all when
bootstrapping clang (it only supports the case of one single store).

The heap SROA implementation causes PR50027 (GEP is not properly handled; crash or miscompile).
Just drop the implementation. I have deleted some obviously duplicated tests
but kept `heap-sra-[12]{,-no-nullopt}.ll`.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D102257
2021-05-11 11:34:37 -07:00

26 lines
849 B
LLVM

; RUN: opt -globalopt -S < %s | FileCheck %s
; CHECK: @Y = {{.*}} section ".foo"
%struct.xyz = type { double, i32 }
@Y = internal global %struct.xyz* null ,section ".foo" ; <%struct.xyz**> [#uses=2]
@numf2s = external global i32 ; <i32*> [#uses=1]
define void @init_net() {
entry:
%0 = load i32, i32* @numf2s, align 4 ; <i32> [#uses=1]
%mallocsize2 = shl i32 %0, 4 ; <i32> [#uses=1]
%malloccall3 = tail call i8* @malloc(i32 %mallocsize2) ; <i8*> [#uses=1]
%1 = bitcast i8* %malloccall3 to %struct.xyz* ; <%struct.xyz*> [#uses=1]
store %struct.xyz* %1, %struct.xyz** @Y, align 8
ret void
}
define void @load_train() {
entry:
%0 = load %struct.xyz*, %struct.xyz** @Y, align 8 ; <%struct.xyz*> [#uses=0]
ret void
}
declare noalias i8* @malloc(i32)