Files
clang-p2996/llvm/test/CodeGen/AMDGPU/basic-branch.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

56 lines
1.9 KiB
LLVM

; RUN: llc -O0 -march=amdgcn -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCNNOOPT -check-prefix=GCN %s
; RUN: llc -O0 -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCNNOOPT -check-prefix=GCN %s
; RUN: llc -O0 -march=amdgcn -mcpu=gfx1010 -mattr=-flat-for-global,-wavefrontsize32,+wavefrontsize64 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCNNOOPT -check-prefix=GCN %s
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCNOPT -check-prefix=GCN %s
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCNOPT -check-prefix=GCN %s
; GCN-LABEL: {{^}}test_branch:
; GCNNOOPT: v_writelane_b32
; GCNNOOPT: v_writelane_b32
; GCN: s_cbranch_scc1 [[END:.LBB[0-9]+_[0-9]+]]
; GCNNOOPT: v_readlane_b32
; GCNNOOPT: v_readlane_b32
; GCN: buffer_store_dword
; GCNNOOPT: s_endpgm
; GCN: {{^}}[[END]]:
; GCN: s_endpgm
define amdgpu_kernel void @test_branch(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in, i32 %val) #0 {
%cmp = icmp ne i32 %val, 0
br i1 %cmp, label %store, label %end
store:
store i32 222, i32 addrspace(1)* %out
ret void
end:
ret void
}
; GCN-LABEL: {{^}}test_brcc_i1:
; GCN: s_load_dword [[VAL:s[0-9]+]]
; GCNNOOPT: s_mov_b32 [[ONE:s[0-9]+]], 1{{$}}
; GCNNOOPT: s_and_b32 s{{[0-9]+}}, [[VAL]], [[ONE]]
; GCNOPT: s_bitcmp0_b32 [[VAL]], 0
; GCNNOOPT: s_cmp_eq_u32
; GCN: s_cbranch_scc1 [[END:.LBB[0-9]+_[0-9]+]]
; GCN: buffer_store_dword
; GCN: {{^}}[[END]]:
; GCN: s_endpgm
define amdgpu_kernel void @test_brcc_i1(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %in, i1 %val) #0 {
%cmp0 = icmp ne i1 %val, 0
br i1 %cmp0, label %store, label %end
store:
store i32 222, i32 addrspace(1)* %out
ret void
end:
ret void
}
attributes #0 = { nounwind }