Files
clang-p2996/llvm/test/CodeGen/AMDGPU/image-sample-waterfall.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

62 lines
3.6 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=gfx906 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN %s
declare <4 x float> @llvm.amdgcn.image.gather4.2d.v4f32.f32(i32, float, float, <8 x i32>, <4 x i32>, i1, i32, i32)
; GCN-LABEL: {{^}}water_loop_rsrc:
; GCN: [[RSRC_LOOP:.L[a-zA-Z0-9_]+]]: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s[[SREG0:[0-9]+]], v[[VREG0:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG1:[0-9]+]], v[[VREG1:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG2:[0-9]+]], v[[VREG2:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG3:[0-9]+]], v[[VREG3:[0-9]+]]
; GCN-NEXT: v_cmp_eq_u64_e32 [[CMP0:vcc]], s{{\[}}[[SREG0]]:[[SREG1]]{{\]}}, v{{\[}}[[VREG0]]:[[VREG1]]{{\]}}
; GCN-NEXT: v_cmp_eq_u64_e64 [[CMP1:s\[[0-9]+:[0-9]+\]]], s{{\[}}[[SREG2]]:[[SREG3]]{{\]}}, v{{\[}}[[VREG2]]:[[VREG3]]{{\]}}
; GCN-NEXT: v_readfirstlane_b32 s[[SREG4:[0-9]+]], v[[VREG4:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG5:[0-9]+]], v[[VREG5:[0-9]+]]
; GCN-NEXT: s_and_b64 [[AND0:s\[[0-9]+:[0-9]+\]]], [[CMP0]], [[CMP1]]
; GCN-NEXT: v_cmp_eq_u64_e32 [[CMP2:vcc]], s{{\[}}[[SREG4]]:[[SREG5]]{{\]}}, v{{\[}}[[VREG4]]:[[VREG5]]{{\]}}
; GCN-NEXT: v_readfirstlane_b32 s[[SREG6:[0-9]+]], v[[VREG6:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG7:[0-9]+]], v[[VREG7:[0-9]+]]
; GCN-NEXT: v_cmp_eq_u64_e64 [[CMP3:s\[[0-9]+:[0-9]+\]]], s{{\[}}[[SREG6]]:[[SREG7]]{{\]}}, v{{\[}}[[VREG6]]:[[VREG7]]{{\]}}
; GCN-NEXT: s_and_b64 [[AND1:s\[[0-9]+:[0-9]+\]]], [[AND0]], [[CMP2]]
; GCN-NEXT: s_and_b64 [[AND:s\[[0-9]+:[0-9]+\]]], [[AND1]], [[CMP3]]
; GCN-NEXT: s_and_saveexec_b64 [[SAVE:s\[[0-9]+:[0-9]+\]]], [[AND]]
; GCN-NEXT: s_nop 0
; GCN-NEXT: image_gather4 {{v\[[0-9]+:[0-9]+\]}}, {{v\[[0-9]+:[0-9]+\]}}, s{{\[}}[[SREG0]]:[[SREG7]]{{\]}}, {{s\[[0-9]+:[0-9]+\]}} dmask:0x1
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
; GCN-NEXT: ; implicit-def: $vgpr8_vgpr9
; GCN-NEXT: s_xor_b64 exec, exec, [[SAVE]]
; GCN-NEXT: s_cbranch_execnz [[RSRC_LOOP]]
define amdgpu_ps <4 x float> @water_loop_rsrc(<8 x i32> %rsrc, <4 x i32> inreg %samp, float %s, float %t) {
main_body:
%v = call <4 x float> @llvm.amdgcn.image.gather4.2d.v4f32.f32(i32 1, float %s, float %t, <8 x i32> %rsrc, <4 x i32> %samp, i1 0, i32 0, i32 0)
ret <4 x float> %v
}
; GCN-LABEL: {{^}}water_loop_samp:
; GCN: [[SAMP_LOOP:.L[a-zA-Z0-9_]+]]: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s[[SREG0:[0-9]+]], v[[VREG0:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG1:[0-9]+]], v[[VREG1:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG2:[0-9]+]], v[[VREG2:[0-9]+]]
; GCN-NEXT: v_readfirstlane_b32 s[[SREG3:[0-9]+]], v[[VREG3:[0-9]+]]
; GCN-NEXT: v_cmp_eq_u64_e32 [[CMP0:vcc]], s{{\[}}[[SREG0]]:[[SREG1]]{{\]}}, v{{\[}}[[VREG0]]:[[VREG1]]{{\]}}
; GCN-NEXT: v_cmp_eq_u64_e64 [[CMP1:s\[[0-9]+:[0-9]+\]]], s{{\[}}[[SREG2]]:[[SREG3]]{{\]}}, v{{\[}}[[VREG2]]:[[VREG3]]{{\]}}
; GCN-NEXT: s_and_b64 [[AND:s\[[0-9]+:[0-9]+\]]], [[CMP0]], [[CMP1]]
; GCN-NEXT: s_and_saveexec_b64 [[SAVE:s\[[0-9]+:[0-9]+\]]], [[AND]]
; GCN-NEXT: s_nop 0
; GCN-NEXT: image_gather4 {{v\[[0-9]+:[0-9]+\]}}, {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, s{{\[}}[[SREG0]]:[[SREG3]]{{\]}} dmask:0x1
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1_vgpr2_vgpr3
; GCN-NEXT: ; implicit-def: $vgpr4_vgpr5
; GCN-NEXT: s_xor_b64 exec, exec, [[SAVE]]
; GCN-NEXT: s_cbranch_execnz [[SAMP_LOOP]]
define amdgpu_ps <4 x float> @water_loop_samp(<8 x i32> inreg %rsrc, <4 x i32> %samp, float %s, float %t) {
main_body:
%v = call <4 x float> @llvm.amdgcn.image.gather4.2d.v4f32.f32(i32 1, float %s, float %t, <8 x i32> %rsrc, <4 x i32> %samp, i1 0, i32 0, i32 0)
ret <4 x float> %v
}