xref: /llvm-project/llvm/test/CodeGen/ARM/fpscr-multi-use.ll (revision e0ed0333f0fed2e73f805afd58b61176a87aa3ad)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
2; RUN: llc -mtriple=armv7 %s -o - | FileCheck %s
3; RUN: llc -mtriple=thumbv7 %s -o - | FileCheck --check-prefix=THUMB %s
4
5declare double @fn()
6
7define void @test(ptr %p, ptr %res) nounwind {
8; CHECK-LABEL: test:
9; CHECK:       @ %bb.0: @ %entry
10; CHECK-NEXT:    push {r4, r5, r11, lr}
11; CHECK-NEXT:    vldr d16, [r0]
12; CHECK-NEXT:    mov r4, r1
13; CHECK-NEXT:    vcmp.f64 d16, #0
14; CHECK-NEXT:    vmrs APSR_nzcv, fpscr
15; CHECK-NEXT:    mrs r5, apsr
16; CHECK-NEXT:    vneg.f64 d17, d16
17; CHECK-NEXT:    vmovne.f64 d16, d17
18; CHECK-NEXT:    vstr d16, [r1]
19; CHECK-NEXT:    bl fn
20; CHECK-NEXT:    vmov d16, r0, r1
21; CHECK-NEXT:    eor r1, r1, #-2147483648
22; CHECK-NEXT:    msr APSR_nzcvq, r5
23; CHECK-NEXT:    vmov d17, r0, r1
24; CHECK-NEXT:    vmovne.f64 d16, d17
25; CHECK-NEXT:    vstr d16, [r4]
26; CHECK-NEXT:    pop {r4, r5, r11, pc}
27;
28; THUMB-LABEL: test:
29; THUMB:       @ %bb.0: @ %entry
30; THUMB-NEXT:    push {r4, r5, r7, lr}
31; THUMB-NEXT:    vldr d16, [r0]
32; THUMB-NEXT:    mov r4, r1
33; THUMB-NEXT:    vcmp.f64 d16, #0
34; THUMB-NEXT:    vmrs APSR_nzcv, fpscr
35; THUMB-NEXT:    mrs r5, apsr
36; THUMB-NEXT:    vneg.f64 d17, d16
37; THUMB-NEXT:    it ne
38; THUMB-NEXT:    vmovne.f64 d16, d17
39; THUMB-NEXT:    vstr d16, [r1]
40; THUMB-NEXT:    bl fn
41; THUMB-NEXT:    vmov d16, r0, r1
42; THUMB-NEXT:    eor r1, r1, #-2147483648
43; THUMB-NEXT:    msr APSR_nzcvq, r5
44; THUMB-NEXT:    vmov d17, r0, r1
45; THUMB-NEXT:    it ne
46; THUMB-NEXT:    vmovne.f64 d16, d17
47; THUMB-NEXT:    vstr d16, [r4]
48; THUMB-NEXT:    pop {r4, r5, r7, pc}
49entry:
50  %x = load double, ptr %p
51  %cmp = fcmp une double %x, 0.000000e+00
52  %nx = fneg double %x
53  %sx = select i1 %cmp, double %nx, double %x
54  store double %sx, ptr %res
55  %y = call double @fn()
56  %ny = fneg double %y
57  %sy = select i1 %cmp, double %ny, double %y
58  store double %sy, ptr %res
59  ret void
60}
61