fp-strict-conv-02.ll
2.66 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
; Test strict extensions of f32 to f64.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare double @llvm.experimental.constrained.fpext.f64.f32(float, metadata)
; Check register extension.
define double @f1(float %val) #0 {
; CHECK-LABEL: f1:
; CHECK: ldebr %f0, %f0
; CHECK: br %r14
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the low end of the LDEB range.
define double @f2(float *%ptr) #0 {
; CHECK-LABEL: f2:
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%val = load float, float *%ptr
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the high end of the aligned LDEB range.
define double @f3(float *%base) #0 {
; CHECK-LABEL: f3:
; CHECK: ldeb %f0, 4092(%r2)
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 1023
%val = load float, float *%ptr
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f4(float *%base) #0 {
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 1024
%val = load float, float *%ptr
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
; Check negative displacements, which also need separate address logic.
define double @f5(float *%base) #0 {
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -4
; CHECK: ldeb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float, float *%base, i64 -1
%val = load float, float *%ptr
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
; Check that LDEB allows indices.
define double @f6(float *%base, i64 %index) #0 {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: ldeb %f0, 400(%r1,%r2)
; CHECK: br %r14
%ptr1 = getelementptr float, float *%base, i64 %index
%ptr2 = getelementptr float, float *%ptr1, i64 100
%val = load float, float *%ptr2
%res = call double @llvm.experimental.constrained.fpext.f64.f32(float %val,
metadata !"fpexcept.strict") #0
ret double %res
}
attributes #0 = { strictfp }