llvm-project/llvm/test/CodeGen/AMDGPU/smrd-vccz-bug.ll
Shilei Tian fc0653f31c
[RFC][NFC][AMDGPU] Remove -verify-machineinstrs from llvm/test/CodeGen/AMDGPU/*.ll (#150024)
Recent upstream trends have moved away from explicitly using `-verify-machineinstrs`, as it's already covered by the expensive checks. This PR removes almost all `-verify-machineinstrs` from tests in `llvm/test/CodeGen/AMDGPU/*.ll`, leaving only those tests where its removal currently causes failures.
2025-07-23 13:42:46 -04:00

50 lines
1.5 KiB
LLVM

; RUN: llc -mtriple=amdgcn -mcpu=verde < %s | FileCheck -check-prefix=GCN -check-prefix=VCCZ-BUG %s
; RUN: llc -mtriple=amdgcn -mcpu=bonaire < %s | FileCheck -check-prefix=GCN -check-prefix=VCCZ-BUG %s
; RUN: llc -mtriple=amdgcn -mcpu=tonga -mattr=-flat-for-global < %s | FileCheck -check-prefix=GCN %s
; GCN-LABEL: {{^}}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(ptr addrspace(4) %in, ptr addrspace(1) %out, float %cond) {
entry:
%cnd = fcmp oeq float 0.0, %cond
%sgpr = load volatile i32, ptr addrspace(4) %in
br i1 %cnd, label %if, label %endif
if:
store i32 %sgpr, ptr addrspace(1) %out
br label %endif
endif:
ret void
}
; GCN-LABEL: {{^}}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(ptr addrspace(1) %in, ptr addrspace(1) %out) {
entry:
%vgpr = load volatile float, ptr addrspace(1) %in
%cnd = fcmp oeq float 0.0, %vgpr
br i1 %cnd, label %if, label %endif
if:
store float %vgpr, ptr addrspace(1) %out
br label %endif
endif:
ret void
}