xref: /llvm-project/llvm/test/CodeGen/AArch64/fpimm.ll (revision 49d5bb4b34e3df48421681dfbd844e2cff51b3b0)
1; RUN: llc -mtriple=aarch64-linux-gnu                                                  -verify-machineinstrs < %s | FileCheck %s
2; RUN: llc -mtriple=aarch64-apple-darwin -code-model=large                             -verify-machineinstrs < %s | FileCheck %s --check-prefixes=LARGE
3; RUN: llc -mtriple=aarch64    -code-model=tiny                              -verify-machineinstrs < %s | FileCheck %s
4; RUN: llc -mtriple=aarch64-linux-gnu -global-isel                           -verify-machineinstrs < %s | FileCheck %s
5
6@varf32 = global float 0.0
7@varf64 = global double 0.0
8
9define void @check_float() {
10; CHECK-LABEL: check_float:
11
12  %val = load float, ptr @varf32
13  %newval1 = fadd float %val, 8.5
14  store volatile float %newval1, ptr @varf32
15; CHECK-DAG: fmov {{s[0-9]+}}, #8.5
16
17  %newval2 = fadd float %val, 128.0
18  store volatile float %newval2, ptr @varf32
19; CHECK-DAG: movi [[REG:v[0-9s]+]].2s, #67, lsl #24
20
21; CHECK: ret
22  ret void
23}
24
25define void @check_double() {
26; CHECK-LABEL: check_double:
27
28  %val = load double, ptr @varf64
29  %newval1 = fadd double %val, 8.5
30  store volatile double %newval1, ptr @varf64
31; CHECK-DAG: fmov {{d[0-9]+}}, #8.5
32
33  %newval2 = fadd double %val, 128.0
34  store volatile double %newval2, ptr @varf64
35; CHECK-DAG: mov [[X128:x[0-9]+]], #4638707616191610880
36; CHECK-DAG: fmov {{d[0-9]+}}, [[X128]]
37
38; 64-bit ORR followed by MOVK.
39; CHECK-DAG: mov  [[XFP0:x[0-9]+]], #1082331758844
40; CHECK-DAG: movk [[XFP0]], #64764, lsl #16
41; CHECk-DAG: fmov {{d[0-9]+}}, [[XFP0]]
42  %newval3 = fadd double %val, 0xFCFCFC00FC
43  store volatile double %newval3, ptr @varf64
44
45; CHECK: ret
46  ret void
47}
48
49; CHECK-LABEL: check_float2
50; CHECK:       mov [[REG:w[0-9]+]], #4059
51; CHECK-NEXT:  movk [[REG]], #16457, lsl #16
52; CHECK-NEXT:  fmov {{s[0-9]+}}, [[REG]]
53define float @check_float2() {
54  ret float 3.14159274101257324218750
55}
56
57; LARGE-LABEL: check_double2
58; LARGE:       mov [[REG:x[0-9]+]], #11544
59; LARGE-NEXT:  movk [[REG]], #21572, lsl #16
60; LARGE-NEXT:  movk [[REG]], #8699, lsl #32
61; LARGE-NEXT:  movk [[REG]], #16393, lsl #48
62; LARGE-NEXT:  fmov {{d[0-9]+}}, [[REG]]
63define double @check_double2() {
64  ret double 3.1415926535897931159979634685441851615905761718750
65}
66