source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AArch64/arm64-setcc-int-to-fp-combine.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 1.7 KB
Line 
1; RUN: llc < %s -asm-verbose=false -mtriple=arm64-apple-ios | FileCheck %s
2
3define <4 x float> @foo(<4 x float> %val, <4 x float> %test) nounwind {
4; CHECK-LABEL: foo:
5; CHECK-NEXT: fcmeq.4s  v0, v0, v1
6; CHECK-NEXT: fmov.4s v1, #1.00000000
7; CHECK-NEXT: and.16b v0, v0, v1
8; CHECK-NEXT: ret
9  %cmp = fcmp oeq <4 x float> %val, %test
10  %ext = zext <4 x i1> %cmp to <4 x i32>
11  %result = sitofp <4 x i32> %ext to <4 x float>
12  ret <4 x float> %result
13}
14; Make sure the operation doesn't try to get folded when the sizes don't match,
15; as that ends up crashing later when trying to form a bitcast operation for
16; the folded nodes.
17define void @foo1(<4 x float> %val, <4 x float> %test, <4 x double>* %p) nounwind {
18; CHECK-LABEL: foo1:
19; CHECK: movi.4s
20; CHECK: scvtf.2d
21; CHECK: scvtf.2d
22  %cmp = fcmp oeq <4 x float> %val, %test
23  %ext = zext <4 x i1> %cmp to <4 x i32>
24  %result = sitofp <4 x i32> %ext to <4 x double>
25  store <4 x double> %result, <4 x double>* %p
26  ret void
27}
28
29; Fold explicit AND operations when the constant isn't a splat of a single
30; scalar value like what the zext creates.
31define <4 x float> @foo2(<4 x float> %val, <4 x float> %test) nounwind {
32; CHECK-LABEL: lCPI2_0:
33; CHECK-NEXT: .long 1065353216
34; CHECK-NEXT: .long 0
35; CHECK-NEXT: .long 1065353216
36; CHECK-NEXT: .long 0
37; CHECK-LABEL: foo2:
38; CHECK: adrp  x8, lCPI2_0@PAGE
39; CHECK: ldr q2, [x8, lCPI2_0@PAGEOFF]
40; CHECK-NEXT:  fcmeq.4s  v0, v0, v1
41; CHECK-NEXT:  and.16b v0, v0, v2
42  %cmp = fcmp oeq <4 x float> %val, %test
43  %ext = zext <4 x i1> %cmp to <4 x i32>
44  %and = and <4 x i32> %ext, <i32 255, i32 256, i32 257, i32 258>
45  %result = sitofp <4 x i32> %and to <4 x float>
46  ret <4 x float> %result
47}
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