1 files changed, 113 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/fptoui.f16.ll b/llvm/test/CodeGen/AMDGPU/fptoui.f16.ll
new file mode 100644
index 00000000000..592c15a3d3c
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/fptoui.f16.ll
@@ -0,0 +1,113 @@
+; RUN: llc -march=amdgcn -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
+; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
+
+; GCN-LABEL: {{^}}fptoui_f16_to_i16
+; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
+; SI:  v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
+; SI:  v_cvt_u32_f32_e32 v[[R_I16:[0-9]+]], v[[A_F32]]
+; VI:  v_cvt_u16_f16_e32 v[[R_I16:[0-9]+]], v[[A_F16]]
+; GCN: buffer_store_short v[[R_I16]]
+; GCN: s_endpgm
+define void @fptoui_f16_to_i16(
+    i16 addrspace(1)* %r,
+    half addrspace(1)* %a) {
+entry:
+  %a.val = load half, half addrspace(1)* %a
+  %r.val = fptoui half %a.val to i16
+  store i16 %r.val, i16 addrspace(1)* %r
+  ret void
+}
+
+; GCN-LABEL: {{^}}fptoui_f16_to_i32
+; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
+; GCN: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
+; GCN: v_cvt_u32_f32_e32 v[[R_I32:[0-9]+]], v[[A_F32]]
+; GCN: buffer_store_dword v[[R_I32]]
+; GCN: s_endpgm
+define void @fptoui_f16_to_i32(
+    i32 addrspace(1)* %r,
+    half addrspace(1)* %a) {
+entry:
+  %a.val = load half, half addrspace(1)* %a
+  %r.val = fptoui half %a.val to i32
+  store i32 %r.val, i32 addrspace(1)* %r
+  ret void
+}
+
+; Need to make sure we promote f16 to f32 when converting f16 to i64. Existing
+; test checks code generated for 'i64 = fp_to_uint f32'.
+
+; GCN-LABEL: {{^}}fptoui_f16_to_i64
+; GCN: buffer_load_ushort
+; GCN: v_cvt_f32_f16_e32
+; GCN: s_endpgm
+define void @fptoui_f16_to_i64(
+    i64 addrspace(1)* %r,
+    half addrspace(1)* %a) {
+entry:
+  %a.val = load half, half addrspace(1)* %a
+  %r.val = fptoui half %a.val to i64
+  store i64 %r.val, i64 addrspace(1)* %r
+  ret void
+}
+
+; GCN-LABEL: {{^}}fptoui_v2f16_to_v2i16
+; GCN: buffer_load_dword v[[A_V2_F16:[0-9]+]]
+; GCN: v_lshrrev_b32_e32 v[[A_F16_1:[0-9]+]], 16, v[[A_V2_F16]]
+; SI:  v_cvt_f32_f16_e32 v[[A_F32_1:[0-9]+]], v[[A_F16_1]]
+; SI:  v_cvt_f32_f16_e32 v[[A_F32_0:[0-9]+]], v[[A_V2_F16]]
+; SI:  v_cvt_u32_f32_e32 v[[R_I16_1:[0-9]+]], v[[A_F32_1]]
+; SI:  v_cvt_u32_f32_e32 v[[R_I16_0:[0-9]+]], v[[A_F32_0]]
+; VI:  v_cvt_u16_f16_e32 v[[R_I16_0:[0-9]+]], v[[A_V2_F16]]
+; VI:  v_cvt_u16_f16_e32 v[[R_I16_1:[0-9]+]], v[[A_F16_1]]
+; VI:  v_and_b32_e32 v[[R_I16_LO:[0-9]+]], 0xffff, v[[R_I16_0]]
+; GCN: v_lshlrev_b32_e32 v[[R_I16_HI:[0-9]+]], 16, v[[R_I16_1]]
+; SI:  v_or_b32_e32 v[[R_V2_I16:[0-9]+]], v[[R_I16_HI]], v[[R_I16_0]]
+; VI:  v_or_b32_e32 v[[R_V2_I16:[0-9]+]], v[[R_I16_HI]], v[[R_I16_LO]]
+; GCN: buffer_store_dword v[[R_V2_I16]]
+; GCN: s_endpgm
+define void @fptoui_v2f16_to_v2i16(
+    <2 x i16> addrspace(1)* %r,
+    <2 x half> addrspace(1)* %a) {
+entry:
+  %a.val = load <2 x half>, <2 x half> addrspace(1)* %a
+  %r.val = fptoui <2 x half> %a.val to <2 x i16>
+  store <2 x i16> %r.val, <2 x i16> addrspace(1)* %r
+  ret void
+}
+
+; GCN-LABEL: {{^}}fptoui_v2f16_to_v2i32
+; GCN:     buffer_load_dword
+; GCN:     v_cvt_f32_f16_e32
+; GCN:     v_cvt_f32_f16_e32
+; GCN:     v_cvt_u32_f32_e32
+; GCN:     v_cvt_u32_f32_e32
+; GCN:     buffer_store_dwordx2
+; GCN:     s_endpgm
+define void @fptoui_v2f16_to_v2i32(
+    <2 x i32> addrspace(1)* %r,
+    <2 x half> addrspace(1)* %a) {
+entry:
+  %a.val = load <2 x half>, <2 x half> addrspace(1)* %a
+  %r.val = fptoui <2 x half> %a.val to <2 x i32>
+  store <2 x i32> %r.val, <2 x i32> addrspace(1)* %r
+  ret void
+}
+
+; Need to make sure we promote f16 to f32 when converting f16 to i64. Existing
+; test checks code generated for 'i64 = fp_to_uint f32'.
+
+; GCN-LABEL: {{^}}fptoui_v2f16_to_v2i64
+; GCN: buffer_load_dword
+; GCN: v_cvt_f32_f16_e32
+; GCN: v_cvt_f32_f16_e32
+; GCN: s_endpgm
+define void @fptoui_v2f16_to_v2i64(
+    <2 x i64> addrspace(1)* %r,
+    <2 x half> addrspace(1)* %a) {
+entry:
+  %a.val = load <2 x half>, <2 x half> addrspace(1)* %a
+  %r.val = fptoui <2 x half> %a.val to <2 x i64>
+  store <2 x i64> %r.val, <2 x i64> addrspace(1)* %r
+  ret void
+}