1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s | FileCheck %s
4 ; The complex floating value will be returned by a single register for LP64 ABI.
5 ; The test case check that the real part returned by __addsf3 will be
6 ; cleared upper bits by shifts to avoid corrupting the imaginary part.
8 define i64 @complex_float_add(i64 %a.coerce, i64 %b.coerce) nounwind {
9 ; CHECK-LABEL: complex_float_add:
10 ; CHECK: # %bb.0: # %entry
11 ; CHECK-NEXT: addi sp, sp, -32
12 ; CHECK-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
13 ; CHECK-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
14 ; CHECK-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
15 ; CHECK-NEXT: sd s2, 0(sp) # 8-byte Folded Spill
16 ; CHECK-NEXT: srli s0, a0, 32
17 ; CHECK-NEXT: srli s1, a1, 32
18 ; CHECK-NEXT: call __addsf3
19 ; CHECK-NEXT: mv s2, a0
20 ; CHECK-NEXT: mv a0, s0
21 ; CHECK-NEXT: mv a1, s1
22 ; CHECK-NEXT: call __addsf3
23 ; CHECK-NEXT: slli a0, a0, 32
24 ; CHECK-NEXT: slli s2, s2, 32
25 ; CHECK-NEXT: srli a1, s2, 32
26 ; CHECK-NEXT: or a0, a0, a1
27 ; CHECK-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
28 ; CHECK-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
29 ; CHECK-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
30 ; CHECK-NEXT: ld s2, 0(sp) # 8-byte Folded Reload
31 ; CHECK-NEXT: addi sp, sp, 32
34 %a.sroa.0.0.extract.trunc = trunc i64 %a.coerce to i32
35 %0 = bitcast i32 %a.sroa.0.0.extract.trunc to float
36 %a.sroa.2.0.extract.shift = lshr i64 %a.coerce, 32
37 %a.sroa.2.0.extract.trunc = trunc i64 %a.sroa.2.0.extract.shift to i32
38 %1 = bitcast i32 %a.sroa.2.0.extract.trunc to float
39 %b.sroa.0.0.extract.trunc = trunc i64 %b.coerce to i32
40 %2 = bitcast i32 %b.sroa.0.0.extract.trunc to float
41 %b.sroa.2.0.extract.shift = lshr i64 %b.coerce, 32
42 %b.sroa.2.0.extract.trunc = trunc i64 %b.sroa.2.0.extract.shift to i32
43 %3 = bitcast i32 %b.sroa.2.0.extract.trunc to float
44 %add.r = fadd float %0, %2
45 %add.i = fadd float %1, %3
46 %4 = bitcast float %add.r to i32
47 %5 = bitcast float %add.i to i32
48 %retval.sroa.2.0.insert.ext = zext i32 %5 to i64
49 %retval.sroa.2.0.insert.shift = shl nuw i64 %retval.sroa.2.0.insert.ext, 32
50 %retval.sroa.0.0.insert.ext = zext i32 %4 to i64
51 %retval.sroa.0.0.insert.insert = or i64 %retval.sroa.2.0.insert.shift, %retval.sroa.0.0.insert.ext
52 ret i64 %retval.sroa.0.0.insert.insert