18f9351223
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
50 lines
1.6 KiB
LLVM
50 lines
1.6 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VCCZ-BUG %s
|
|
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VCCZ-BUG %s
|
|
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
|
|
|
|
; GCN-FUNC: {{^}}vccz_workaround:
|
|
; GCN: s_load_dword [[REG:s[0-9]+]], s[{{[0-9]+:[0-9]+}}],
|
|
; GCN: v_cmp_neq_f32_e64 {{[^,]*}}, [[REG]], 0{{$}}
|
|
; VCCZ-BUG: s_waitcnt lgkmcnt(0)
|
|
; VCCZ-BUG: s_mov_b64 vcc, vcc
|
|
; GCN-NOT: s_mov_b64 vcc, vcc
|
|
; GCN: s_cbranch_vccnz [[EXIT:.L[0-9A-Za-z_]+]]
|
|
; GCN: buffer_store_dword
|
|
; GCN: [[EXIT]]:
|
|
; GCN: s_endpgm
|
|
define amdgpu_kernel void @vccz_workaround(i32 addrspace(4)* %in, i32 addrspace(1)* %out, float %cond) {
|
|
entry:
|
|
%cnd = fcmp oeq float 0.0, %cond
|
|
%sgpr = load volatile i32, i32 addrspace(4)* %in
|
|
br i1 %cnd, label %if, label %endif
|
|
|
|
if:
|
|
store i32 %sgpr, i32 addrspace(1)* %out
|
|
br label %endif
|
|
|
|
endif:
|
|
ret void
|
|
}
|
|
|
|
; GCN-FUNC: {{^}}vccz_noworkaround:
|
|
; GCN: v_cmp_neq_f32_e32 vcc, 0, v{{[0-9]+}}
|
|
; GCN-NOT: s_waitcnt lgkmcnt(0)
|
|
; GCN-NOT: s_mov_b64 vcc, vcc
|
|
; GCN: s_cbranch_vccnz [[EXIT:.L[0-9A-Za-z_]+]]
|
|
; GCN: buffer_store_dword
|
|
; GCN: [[EXIT]]:
|
|
; GCN: s_endpgm
|
|
define amdgpu_kernel void @vccz_noworkaround(float addrspace(1)* %in, float addrspace(1)* %out) {
|
|
entry:
|
|
%vgpr = load volatile float, float addrspace(1)* %in
|
|
%cnd = fcmp oeq float 0.0, %vgpr
|
|
br i1 %cnd, label %if, label %endif
|
|
|
|
if:
|
|
store float %vgpr, float addrspace(1)* %out
|
|
br label %endif
|
|
|
|
endif:
|
|
ret void
|
|
}
|