1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; Test strict conversion of floating-point values to unsigned i32s (z10 only).
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
5
6; z10 doesn't have native support for unsigned fp-to-i32 conversions;
7; they were added in z196 as the Convert to Logical family of instructions.
8; Promoting to i64 doesn't generate an inexact condition for values that are
9; outside the i32 range but in the i64 range, so use the default expansion.
10; Note that the strict expansion sequence must be used.
11
12declare i32 @llvm.experimental.constrained.fptoui.i32.f32(float, metadata)
13declare i32 @llvm.experimental.constrained.fptoui.i32.f64(double, metadata)
14declare i32 @llvm.experimental.constrained.fptoui.i32.f128(fp128, metadata)
15
16; Test f32->i32.
17define i32 @f1(float %f) #0 {
18; CHECK-LABEL: f1:
19; CHECK:       # %bb.0:
20; CHECK-NEXT:    larl %r1, .LCPI0_0
21; CHECK-NEXT:    le %f1, 0(%r1)
22; CHECK-NEXT:    kebr %f0, %f1
23; CHECK-NEXT:    jnl .LBB0_2
24; CHECK-NEXT:  # %bb.1:
25; CHECK-NEXT:    lhi %r0, 0
26; CHECK-NEXT:    lzer %f1
27; CHECK-NEXT:    j .LBB0_3
28; CHECK-NEXT:  .LBB0_2:
29; CHECK-NEXT:    llilh %r0, 32768
30; CHECK-NEXT:  .LBB0_3:
31; CHECK-NEXT:    sebr %f0, %f1
32; CHECK-NEXT:    cfebr %r2, 5, %f0
33; CHECK-NEXT:    xr %r2, %r0
34; CHECK-NEXT:    br %r14
35  %conv = call i32 @llvm.experimental.constrained.fptoui.i32.f32(float %f,
36                                               metadata !"fpexcept.strict") #0
37  ret i32 %conv
38}
39
40; Test f64->i32.
41define i32 @f2(double %f) #0 {
42; CHECK-LABEL: f2:
43; CHECK:       # %bb.0:
44; CHECK-NEXT:    larl %r1, .LCPI1_0
45; CHECK-NEXT:    ldeb %f1, 0(%r1)
46; CHECK-NEXT:    kdbr %f0, %f1
47; CHECK-NEXT:    jnl .LBB1_2
48; CHECK-NEXT:  # %bb.1:
49; CHECK-NEXT:    lhi %r0, 0
50; CHECK-NEXT:    lzdr %f1
51; CHECK-NEXT:    j .LBB1_3
52; CHECK-NEXT:  .LBB1_2:
53; CHECK-NEXT:    llilh %r0, 32768
54; CHECK-NEXT:  .LBB1_3:
55; CHECK-NEXT:    sdbr %f0, %f1
56; CHECK-NEXT:    cfdbr %r2, 5, %f0
57; CHECK-NEXT:    xr %r2, %r0
58; CHECK-NEXT:    br %r14
59  %conv = call i32 @llvm.experimental.constrained.fptoui.i32.f64(double %f,
60                                               metadata !"fpexcept.strict") #0
61  ret i32 %conv
62}
63
64; Test f128->i32.
65define i32 @f3(fp128 *%src) #0 {
66; CHECK-LABEL: f3:
67; CHECK:       # %bb.0:
68; CHECK-NEXT:    ld %f0, 0(%r2)
69; CHECK-NEXT:    ld %f2, 8(%r2)
70; CHECK-NEXT:    larl %r1, .LCPI2_0
71; CHECK-NEXT:    lxeb %f1, 0(%r1)
72; CHECK-NEXT:    kxbr %f0, %f1
73; CHECK-NEXT:    jnl .LBB2_2
74; CHECK-NEXT:  # %bb.1:
75; CHECK-NEXT:    lhi %r0, 0
76; CHECK-NEXT:    lzxr %f1
77; CHECK-NEXT:    j .LBB2_3
78; CHECK-NEXT:  .LBB2_2:
79; CHECK-NEXT:    llilh %r0, 32768
80; CHECK-NEXT:  .LBB2_3:
81; CHECK-NEXT:    sxbr %f0, %f1
82; CHECK-NEXT:    cfxbr %r2, 5, %f0
83; CHECK-NEXT:    xr %r2, %r0
84; CHECK-NEXT:    br %r14
85  %f = load fp128, fp128 *%src
86  %conv = call i32 @llvm.experimental.constrained.fptoui.i32.f128(fp128 %f,
87                                               metadata !"fpexcept.strict") #0
88  ret i32 %conv
89}
90
91attributes #0 = { strictfp }
92