llvm-6502/test/CodeGen/SystemZ/fp-move-01.ll
Ulrich Weigand b503b49b51 [SystemZ] Add CodeGen test cases
This adds all CodeGen tests for the SystemZ target.

This version of the patch incorporates feedback from a review by
Sean Silva.  Thanks to all reviewers!

Patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 16:17:29 +00:00

31 lines
633 B
LLVM

; Test moves between FPRs.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Test f32 moves.
define float @f1(float %a, float %b) {
; CHECK: f1:
; CHECK: ler %f0, %f2
ret float %b
}
; Test f64 moves.
define double @f2(double %a, double %b) {
; CHECK: f2:
; CHECK: ldr %f0, %f2
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: f3:
; CHECK: lxr
; CHECK: axbr
%val = load volatile fp128 *%x
%sum = fadd fp128 %val, %val
store volatile fp128 %sum, fp128 *%x
store volatile fp128 %val, fp128 *%x
ret void
}