Files
clang-p2996/llvm/test/Transforms/LoopStrengthReduce/AMDGPU/different-addrspace-crash.ll
RamNalamothu 18f9351223 [AMDGPU] Do not generate ELF symbols for the local branch target labels
The compiler was generating symbols in the final code object for local
branch target labels. This bloats the code object, slows down the loader,
and is only used to simplify disassembly.

Use '--symbolize-operands' with llvm-objdump to improve readability of the
branch target operands in disassembly.

Fixes: SWDEV-312223

Reviewed By: scott.linder

Differential Revision: https://reviews.llvm.org/D114273
2021-11-20 10:32:41 +05:30

31 lines
920 B
LLVM

; RUN: llc < %s | FileCheck %s
target triple = "amdgcn--"
; We need to compile this for a target where we have different address spaces,
; and where pointers in those address spaces have different size.
; E.g. for amdgcn-- pointers in address space 0 are 32 bits and pointers in
; address space 1 are 64 bits.
; We shouldn't crash. Check that we get a loop with the two stores.
;CHECK-LABEL: foo:
;CHECK: [[LOOP_LABEL:.LBB[0-9]+_[0-9]+]]:
;CHECK: buffer_store_dword
;CHECK: buffer_store_dword
;CHECK: s_branch [[LOOP_LABEL]]
define amdgpu_kernel void @foo() {
entry:
br label %loop
loop:
%idx0 = phi i32 [ %next_idx0, %loop ], [ 0, %entry ]
%0 = getelementptr inbounds i32, i32 addrspace(5)* null, i32 %idx0
%1 = getelementptr inbounds i32, i32 addrspace(1)* null, i32 %idx0
store i32 1, i32 addrspace(5)* %0
store i32 7, i32 addrspace(1)* %1
%next_idx0 = add nuw nsw i32 %idx0, 1
br label %loop
}