1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 declare <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16>)
5 declare <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16>)
11 ; Only bottom 4 elements required.
12 define <4 x float> @demand_vcvtph2ps_128(<8 x i16> %A) {
13 ; CHECK-LABEL: @demand_vcvtph2ps_128(
14 ; CHECK-NEXT: [[TMP1:%.*]] = tail call <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16> %A)
15 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
17 %1 = shufflevector <8 x i16> %A, <8 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
18 %2 = tail call <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16> %1)
22 ; All 8 elements required.
23 define <8 x float> @demand_vcvtph2ps_256(<8 x i16> %A) {
24 ; CHECK-LABEL: @demand_vcvtph2ps_256(
25 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <8 x i16> %A, <8 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
26 ; CHECK-NEXT: [[TMP2:%.*]] = tail call <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16> [[TMP1]])
27 ; CHECK-NEXT: ret <8 x float> [[TMP2]]
29 %1 = shufflevector <8 x i16> %A, <8 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
30 %2 = tail call <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16> %1)
38 define <4 x float> @fold_vcvtph2ps_128() {
39 ; CHECK-LABEL: @fold_vcvtph2ps_128(
40 ; CHECK-NEXT: ret <4 x float> <float 0.000000e+00, float 5.000000e-01, float 1.000000e+00, float -0.000000e+00>
42 %1 = tail call <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16> <i16 0, i16 14336, i16 15360, i16 32768, i16 16384, i16 31743, i16 48128, i16 49152>)
46 define <8 x float> @fold_vcvtph2ps_256() {
47 ; CHECK-LABEL: @fold_vcvtph2ps_256(
48 ; CHECK-NEXT: ret <8 x float> <float 0.000000e+00, float 5.000000e-01, float 1.000000e+00, float -0.000000e+00, float 2.000000e+00, float 6.550400e+04, float -1.000000e+00, float -2.000000e+00>
50 %1 = tail call <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16> <i16 0, i16 14336, i16 15360, i16 32768, i16 16384, i16 31743, i16 48128, i16 49152>)
54 define <4 x float> @fold_vcvtph2ps_128_zero() {
55 ; CHECK-LABEL: @fold_vcvtph2ps_128_zero(
56 ; CHECK-NEXT: ret <4 x float> zeroinitializer
58 %1 = tail call <4 x float> @llvm.x86.vcvtph2ps.128(<8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)
62 define <8 x float> @fold_vcvtph2ps_256_zero() {
63 ; CHECK-LABEL: @fold_vcvtph2ps_256_zero(
64 ; CHECK-NEXT: ret <8 x float> zeroinitializer
66 %1 = tail call <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>)