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llvm-mirror/test/CodeGen/AMDGPU/i1-copy-from-loop.ll
Matt Arsenault 74c3954b0a Revert "[AMDGPU] Enable compare operations to be selected by divergence"
This reverts commit 521ac0b5cea02f629d035f807460affbb65ae7ad.

Reported to break thousands of piglit tests.
2020-06-24 11:21:30 -04:00

86 lines
2.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=amdgcn-- -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
define amdgpu_ps void @i1_copy_from_loop(<4 x i32> inreg %rsrc, i32 %tid) {
; SI-LABEL: i1_copy_from_loop:
; SI: ; %bb.0: ; %entry
; SI-NEXT: s_mov_b32 s6, 0
; SI-NEXT: s_mov_b64 s[4:5], 0
; SI-NEXT: ; implicit-def: $sgpr8_sgpr9
; SI-NEXT: ; implicit-def: $sgpr10_sgpr11
; SI-NEXT: s_branch BB0_3
; SI-NEXT: BB0_1: ; %Flow1
; SI-NEXT: ; in Loop: Header=BB0_3 Depth=1
; SI-NEXT: s_or_b64 exec, exec, s[14:15]
; SI-NEXT: BB0_2: ; %Flow
; SI-NEXT: ; in Loop: Header=BB0_3 Depth=1
; SI-NEXT: s_and_b64 s[14:15], exec, s[10:11]
; SI-NEXT: s_or_b64 s[4:5], s[14:15], s[4:5]
; SI-NEXT: s_andn2_b64 s[8:9], s[8:9], exec
; SI-NEXT: s_and_b64 s[12:13], s[12:13], exec
; SI-NEXT: s_or_b64 s[8:9], s[8:9], s[12:13]
; SI-NEXT: s_andn2_b64 exec, exec, s[4:5]
; SI-NEXT: s_cbranch_execz BB0_6
; SI-NEXT: BB0_3: ; %for.body
; SI-NEXT: ; =>This Inner Loop Header: Depth=1
; SI-NEXT: s_or_b64 s[10:11], s[10:11], exec
; SI-NEXT: s_cmp_gt_u32 s6, 3
; SI-NEXT: v_cmp_lt_u32_e64 s[12:13], s6, 4
; SI-NEXT: s_cbranch_scc1 BB0_2
; SI-NEXT: ; %bb.4: ; %mid.loop
; SI-NEXT: ; in Loop: Header=BB0_3 Depth=1
; SI-NEXT: v_mov_b32_e32 v1, s6
; SI-NEXT: buffer_load_dword v1, v[0:1], s[0:3], 0 idxen offen
; SI-NEXT: s_mov_b64 s[12:13], -1
; SI-NEXT: s_waitcnt vmcnt(0)
; SI-NEXT: v_cmp_le_f32_e32 vcc, 0, v1
; SI-NEXT: s_mov_b64 s[10:11], -1
; SI-NEXT: s_and_saveexec_b64 s[14:15], vcc
; SI-NEXT: s_cbranch_execz BB0_1
; SI-NEXT: ; %bb.5: ; %end.loop
; SI-NEXT: ; in Loop: Header=BB0_3 Depth=1
; SI-NEXT: s_add_i32 s6, s6, 1
; SI-NEXT: s_xor_b64 s[10:11], exec, -1
; SI-NEXT: s_branch BB0_1
; SI-NEXT: BB0_6: ; %for.end
; SI-NEXT: s_or_b64 exec, exec, s[4:5]
; SI-NEXT: s_and_saveexec_b64 s[0:1], s[8:9]
; SI-NEXT: s_cbranch_execz BB0_8
; SI-NEXT: ; %bb.7: ; %if
; SI-NEXT: exp mrt0 v0, v0, v0, v0 done vm
; SI-NEXT: BB0_8: ; %end
; SI-NEXT: s_endpgm
entry:
br label %for.body
for.body:
%i = phi i32 [0, %entry], [%i.inc, %end.loop]
%cc = icmp ult i32 %i, 4
br i1 %cc, label %mid.loop, label %for.end
mid.loop:
%v = call float @llvm.amdgcn.struct.buffer.load.f32(<4 x i32> %rsrc, i32 %tid, i32 %i, i32 0, i32 0)
%cc2 = fcmp oge float %v, 0.0
br i1 %cc2, label %end.loop, label %for.end
end.loop:
%i.inc = add i32 %i, 1
br label %for.body
for.end:
br i1 %cc, label %if, label %end
if:
call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float undef, float undef, float undef, float undef, i1 true, i1 true)
br label %end
end:
ret void
}
declare float @llvm.amdgcn.struct.buffer.load.f32(<4 x i32>, i32, i32, i32, i32 immarg) #0
declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1) #1
attributes #0 = { nounwind readonly }
attributes #1 = { nounwind inaccessiblememonly }