File: fp-move-12.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (33 lines) | stat: -rw-r--r-- 747 bytes parent folder | download | duplicates (14)
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 on z13.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s

; Test that we use LDR instead of LER.
define float @f1(float %a, float %b) {
; CHECK-LABEL: f1:
; CHECK: ldr %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(fp128 *%x) {
; CHECK-LABEL: f3:
; CHECK: lxr
; CHECK: axbr
; CHECK: br %r14
  %val = load volatile fp128, fp128 *%x
  %sum = fadd fp128 %val, %val
  store volatile fp128 %sum, fp128 *%x
  store volatile fp128 %val, fp128 *%x
  ret void
}