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llvm-mirror/test/CodeGen/SystemZ/fp-add-03.ll
Jonas Paulsson 4b6f06420e [SystemZ] Enable machine scheduler.
The machine scheduler (before register allocation) is enabled by default for
SystemZ.

The SelectionDAG scheduling preference now becomes source order scheduling
(was regpressure).

Review: Ulrich Weigand
https://reviews.llvm.org/D37977

llvm-svn: 315063
2017-10-06 13:59:28 +00:00

21 lines
523 B
LLVM

; Test 128-bit floating-point addition.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; There is no memory form of 128-bit addition.
define void @f1(fp128 *%ptr, float %f2) {
; CHECK-LABEL: f1:
; CHECK-DAG: lxebr %f0, %f0
; CHECK-DAG: ld %f1, 0(%r2)
; CHECK-DAG: ld %f3, 8(%r2)
; CHECK: axbr %f0, %f1
; CHECK: std %f0, 0(%r2)
; CHECK: std %f2, 8(%r2)
; CHECK: br %r14
%f1 = load fp128 , fp128 *%ptr
%f2x = fpext float %f2 to fp128
%sum = fadd fp128 %f1, %f2x
store fp128 %sum, fp128 *%ptr
ret void
}