1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck %s
4 define half @known_nnan_extract_vector_elt(float %a, float %b, i32 %idx, half %c) {
5 ; CHECK-LABEL: known_nnan_extract_vector_elt:
7 ; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
8 ; CHECK-NEXT: v_cvt_pkrtz_f16_f32_e32 v0, v0, v1
9 ; CHECK-NEXT: v_lshlrev_b32_e32 v1, 4, v2
10 ; CHECK-NEXT: v_add_f16_e32 v2, 1.0, v3
11 ; CHECK-NEXT: v_lshrrev_b32_e32 v0, v1, v0
12 ; CHECK-NEXT: v_cmp_lt_f16_e32 vcc_lo, v0, v2
13 ; CHECK-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc_lo
14 ; CHECK-NEXT: s_setpc_b64 s[30:31]
15 %cvt = call nnan <2 x half> @llvm.amdgcn.cvt.pkrtz(float %a, float %b)
16 %extract = extractelement <2 x half> %cvt, i32 %idx
17 %canon = call half @llvm.canonicalize.f16(half %extract)
18 %nnan.c = fadd nnan nsz half %c, 1.0
19 %cmp = fcmp olt half %extract, %nnan.c
20 %select = select i1 %cmp, half %extract, half %nnan.c
24 ; should not emit v_max
25 define float @fma_not_fmaxnm_maybe_nan(i32 %i1, i32 %i2, i32 %i3) #0 {
26 ; CHECK-LABEL: fma_not_fmaxnm_maybe_nan:
28 ; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
29 ; CHECK-NEXT: v_cvt_f32_u32_e32 v0, v0
30 ; CHECK-NEXT: v_cvt_f32_u32_e32 v1, v1
31 ; CHECK-NEXT: v_fmaak_f32 v0, v1, v0, 0xff800000
32 ; CHECK-NEXT: v_cmp_nge_f32_e32 vcc_lo, 0xff800000, v0
33 ; CHECK-NEXT: v_cndmask_b32_e32 v0, 0xff800000, v0, vcc_lo
34 ; CHECK-NEXT: s_setpc_b64 s[30:31]
35 %f1 = uitofp i32 %i1 to float
36 %f2 = uitofp i32 %i2 to float
37 %f3 = uitofp i32 %i2 to float
38 %fma = tail call float @llvm.fma.f32(float %f2, float %f1, float 0xfff0000000000000)
39 %cmp = fcmp ugt float %fma, 0xfff0000000000000
40 %val = select i1 %cmp, float %fma, float 0xfff0000000000000
44 declare float @llvm.fma.f32(float, float, float) nounwind readnone
45 declare float @llvm.amdgcn.fmad.ftz.f32(float, float, float)
47 declare <2 x half> @llvm.amdgcn.cvt.pkrtz(float, float)
48 declare half @llvm.canonicalize.f16(half)
50 attributes #0 = { nounwind "no-signed-zeros-fp-math"="true" "target-features"="+mad-mac-f32-insts" }