File: fp-move-01.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (33 lines) | stat: -rw-r--r-- 707 bytes parent folder | download | duplicates (12) 
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
 
; Test moves between FPRs.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s

; Test f32 moves.
define float @f1(float %a, float %b) {
; CHECK-LABEL: f1:
; CHECK: ler %f0, %f2
; CHECK: br %r14
  ret float %b
}

; Test f64 moves.
define double @f2(double %a, double %b) {
; CHECK-LABEL: f2:
; CHECK: ldr %f0, %f2
; CHECK: br %r14
  ret double %b
}

; Test f128 moves.  Since f128s are passed by reference, we need to force
; a copy by other means.
define void @f3(ptr %x) {
; CHECK-LABEL: f3:
; CHECK: lxr
; CHECK: axbr
; CHECK: br %r14
  %val = load volatile fp128, ptr %x
  %sum = fadd fp128 %val, %val
  store volatile fp128 %sum, ptr %x
  store volatile fp128 %val, ptr %x
  ret void
}