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ea58cf0e44
Surprisingly, one of the three interference checks in LiveRegMatrix was using the main live range instead of the apropriate subregister range resulting in unnecessarily conservative results. llvm-svn: 296722
111 lines
2.8 KiB
LLVM
111 lines
2.8 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
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; GCN-LABEL: {{^}}br_cc_f16:
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; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
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; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
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; SI-DAG: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
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; SI-DAG: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
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; SI: v_cmp_nlt_f32_e32 vcc, v[[B_F32]], v[[A_F32]]
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; VI: v_cmp_nlt_f16_e32 vcc, v[[A_F16]], v[[B_F16]]
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; GCN: s_cbranch_vccnz
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; GCN: one{{$}}
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; SI: v_cvt_f16_f32_e32 v[[A_F16:[0-9]+]], v[[B_F32]]
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; GCN: buffer_store_short
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; GCN: s_endpgm
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; GCN: two{{$}}
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; SI: v_cvt_f16_f32_e32 v[[B_F16:[0-9]+]], v[[A_F32]]
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; GCN: buffer_store_short v[[B_F16]]
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; GCN: s_endpgm
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define void @br_cc_f16(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%fcmp = fcmp olt half %a.val, %b.val
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br i1 %fcmp, label %one, label %two
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one:
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store half %a.val, half addrspace(1)* %r
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ret void
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two:
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store half %b.val, half addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}br_cc_f16_imm_a:
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; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
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; SI: v_cmp_nlt_f32_e32 vcc, 0.5, v[[B_F32]]
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; SI: s_cbranch_vccnz
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; VI: v_cmp_nlt_f16_e32 vcc, 0.5, v[[B_F16]]
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; VI: s_cbranch_vccnz
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; GCN: one{{$}}
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; VI: v_mov_b32_e32 v[[A_F16:[0-9]+]], 0x380{{0|1}}{{$}}
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; SI: buffer_store_short v[[A_F16]]
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; SI: s_endpgm
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; GCN: two{{$}}
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; SI: v_cvt_f16_f32_e32 v[[B_F16:[0-9]+]], v[[B_F32]]
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define void @br_cc_f16_imm_a(
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half addrspace(1)* %r,
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half addrspace(1)* %b) {
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entry:
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%b.val = load half, half addrspace(1)* %b
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%fcmp = fcmp olt half 0xH3800, %b.val
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br i1 %fcmp, label %one, label %two
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one:
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store half 0xH3800, half addrspace(1)* %r
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ret void
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two:
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store half %b.val, half addrspace(1)* %r
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ret void
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}
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; GCN-LABEL: {{^}}br_cc_f16_imm_b:
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; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
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; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
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; SI: v_cmp_ngt_f32_e32 vcc, 0.5, v[[A_F32]]
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; VI: v_cmp_ngt_f16_e32 vcc, 0.5, v[[A_F16]]
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; GCN: s_cbranch_vccnz
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; GCN: one{{$}}
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; SI: v_cvt_f16_f32_e32 v[[A_F16:[0-9]+]], v[[A_F32]]
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; GCN: two{{$}}
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; VI: v_mov_b32_e32 v[[B_F16:[0-9]+]], 0x3800{{$}}
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; GCN: buffer_store_short v[[B_F16]]
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; GCN: s_endpgm
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define void @br_cc_f16_imm_b(
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half addrspace(1)* %r,
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half addrspace(1)* %a) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%fcmp = fcmp olt half %a.val, 0xH3800
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br i1 %fcmp, label %one, label %two
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one:
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store half %a.val, half addrspace(1)* %r
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ret void
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two:
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store half 0xH3800, half addrspace(1)* %r
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ret void
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}
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