Files
clang-p2996/llvm/test/CodeGen/AMDGPU/si-annotate-cf-kill.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

131 lines
4.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI %s
; RUN: llc < %s -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs | FileCheck --check-prefix=FLAT %s
define amdgpu_ps float @uniform_kill(float %a, i32 %b, float %c) {
; SI-LABEL: uniform_kill:
; SI: ; %bb.0: ; %entry
; SI-NEXT: v_cvt_i32_f32_e32 v0, v0
; SI-NEXT: s_mov_b64 s[0:1], exec
; SI-NEXT: s_mov_b64 s[2:3], -1
; SI-NEXT: v_or_b32_e32 v0, v1, v0
; SI-NEXT: v_and_b32_e32 v0, 1, v0
; SI-NEXT: v_cmp_eq_u32_e32 vcc, 1, v0
; SI-NEXT: s_and_saveexec_b64 s[4:5], vcc
; SI-NEXT: ; %bb.1: ; %if1
; SI-NEXT: s_xor_b64 s[2:3], exec, -1
; SI-NEXT: ; %bb.2: ; %endif1
; SI-NEXT: s_or_b64 exec, exec, s[4:5]
; SI-NEXT: s_wqm_b64 s[4:5], s[2:3]
; SI-NEXT: s_xor_b64 s[4:5], s[4:5], exec
; SI-NEXT: s_andn2_b64 s[0:1], s[0:1], s[4:5]
; SI-NEXT: s_cbranch_scc0 .LBB0_6
; SI-NEXT: ; %bb.3: ; %endif1
; SI-NEXT: s_and_b64 exec, exec, s[0:1]
; SI-NEXT: v_mov_b32_e32 v0, 0
; SI-NEXT: s_and_saveexec_b64 s[0:1], s[2:3]
; SI-NEXT: s_cbranch_execz .LBB0_5
; SI-NEXT: ; %bb.4: ; %if2
; SI-NEXT: s_mov_b32 s3, 0
; SI-NEXT: v_add_f32_e32 v0, 1.0, v2
; SI-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x0
; SI-NEXT: v_cvt_i32_f32_e32 v0, v0
; SI-NEXT: s_waitcnt lgkmcnt(0)
; SI-NEXT: buffer_atomic_swap v0, off, s[4:7], 0 offset:4 glc
; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0)
; SI-NEXT: v_cvt_f32_i32_e32 v0, v0
; SI-NEXT: .LBB0_5: ; %endif2
; SI-NEXT: s_or_b64 exec, exec, s[0:1]
; SI-NEXT: s_branch .LBB0_7
; SI-NEXT: .LBB0_6:
; SI-NEXT: s_mov_b64 exec, 0
; SI-NEXT: exp null off, off, off, off done vm
; SI-NEXT: s_endpgm
; SI-NEXT: .LBB0_7:
;
; FLAT-LABEL: uniform_kill:
; FLAT: ; %bb.0: ; %entry
; FLAT-NEXT: v_cvt_i32_f32_e32 v0, v0
; FLAT-NEXT: s_mov_b64 s[0:1], exec
; FLAT-NEXT: s_mov_b64 s[2:3], -1
; FLAT-NEXT: v_or_b32_e32 v0, v1, v0
; FLAT-NEXT: v_and_b32_e32 v0, 1, v0
; FLAT-NEXT: v_cmp_eq_u32_e32 vcc, 1, v0
; FLAT-NEXT: s_and_saveexec_b64 s[4:5], vcc
; FLAT-NEXT: ; %bb.1: ; %if1
; FLAT-NEXT: s_xor_b64 s[2:3], exec, -1
; FLAT-NEXT: ; %bb.2: ; %endif1
; FLAT-NEXT: s_or_b64 exec, exec, s[4:5]
; FLAT-NEXT: s_wqm_b64 s[4:5], s[2:3]
; FLAT-NEXT: s_xor_b64 s[4:5], s[4:5], exec
; FLAT-NEXT: s_andn2_b64 s[0:1], s[0:1], s[4:5]
; FLAT-NEXT: s_cbranch_scc0 .LBB0_6
; FLAT-NEXT: ; %bb.3: ; %endif1
; FLAT-NEXT: s_and_b64 exec, exec, s[0:1]
; FLAT-NEXT: v_mov_b32_e32 v0, 0
; FLAT-NEXT: s_and_saveexec_b64 s[0:1], s[2:3]
; FLAT-NEXT: s_cbranch_execz .LBB0_5
; FLAT-NEXT: ; %bb.4: ; %if2
; FLAT-NEXT: s_mov_b32 s3, 0
; FLAT-NEXT: v_add_f32_e32 v0, 1.0, v2
; FLAT-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x0
; FLAT-NEXT: v_cvt_i32_f32_e32 v0, v0
; FLAT-NEXT: s_waitcnt lgkmcnt(0)
; FLAT-NEXT: buffer_atomic_swap v0, off, s[4:7], 0 offset:4 glc
; FLAT-NEXT: s_waitcnt vmcnt(0)
; FLAT-NEXT: v_cvt_f32_i32_e32 v0, v0
; FLAT-NEXT: .LBB0_5: ; %endif2
; FLAT-NEXT: s_or_b64 exec, exec, s[0:1]
; FLAT-NEXT: s_branch .LBB0_7
; FLAT-NEXT: .LBB0_6:
; FLAT-NEXT: s_mov_b64 exec, 0
; FLAT-NEXT: exp null off, off, off, off done vm
; FLAT-NEXT: s_endpgm
; FLAT-NEXT: .LBB0_7:
entry:
%.1 = fptosi float %a to i32
%.2 = or i32 %b, %.1
%.3 = and i32 %.2, 1
%.not = icmp eq i32 %.3, 0
br i1 %.not, label %endif1, label %if1
if1:
br i1 false, label %if3, label %endif1
if3:
br label %endif1
endif1:
%.0 = phi i1 [ false, %if3 ], [ false, %if1 ], [ true, %entry ]
%.4 = call i1 @llvm.amdgcn.wqm.vote(i1 %.0)
; This kill must be uniformly executed
call void @llvm.amdgcn.kill(i1 %.4)
%.test0 = fadd nsz arcp float %c, 1.0
%.test1 = fptosi float %.test0 to i32
br i1 %.0, label %if2, label %endif2
if2:
%.5 = getelementptr inbounds <4 x i32>, <4 x i32> addrspace(6)* undef, i32 31, !amdgpu.uniform !0
%.6 = load <4 x i32>, <4 x i32> addrspace(6)* %.5, align 16, !invariant.load !0
%.7 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %.test1, <4 x i32> %.6, i32 4, i32 0, i32 0)
%.8 = sitofp i32 %.7 to float
br label %endif2
endif2:
%.9 = phi float [ %.8, %if2 ], [ 0.0, %endif1 ]
ret float %.9
}
declare i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32, <4 x i32>, i32, i32, i32 immarg) #2
declare i1 @llvm.amdgcn.wqm.vote(i1) #3
declare void @llvm.amdgcn.kill(i1) #4
declare float @llvm.amdgcn.wqm.f32(float) #1
attributes #1 = { nounwind readnone speculatable willreturn }
attributes #2 = { nounwind willreturn }
attributes #3 = { convergent nounwind readnone willreturn }
attributes #4 = { nounwind }
!0 = !{}