blob: 18fa89e6ca6cb8af6eaca02880d0cc3430b204fe [file] [log] [blame]
; Test long double atomic exchange.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
define void @f1(ptr align 16 %ret, ptr align 16 %src, ptr align 16 %b) {
; CHECK-LABEL: f1:
; CHECK: lg %r1, 8(%r4)
; CHECK-NEXT: lg %r0, 0(%r4)
; CHECK-NEXT: lg %r4, 8(%r3)
; CHECK-NEXT: lg %r5, 0(%r3)
; CHECK-NEXT:.LBB0_1: # %atomicrmw.start
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: lgr %r12, %r5
; CHECK-NEXT: lgr %r13, %r4
; CHECK-NEXT: cdsg %r12, %r0, 0(%r3)
; CHECK-NEXT: lgr %r4, %r13
; CHECK-NEXT: lgr %r5, %r12
; CHECK-NEXT: jl .LBB0_1
; CHECK-NEXT:# %bb.2: # %atomicrmw.end
; CHECK-NEXT: stg %r5, 0(%r2)
; CHECK-NEXT: stg %r4, 8(%r2)
; CHECK-NEXT: lmg %r12, %r15, 96(%r15)
; CHECK-NEXT: br %r14
%val = load fp128, ptr %b, align 16
%res = atomicrmw xchg ptr %src, fp128 %val seq_cst
store fp128 %res, ptr %ret, align 16
ret void
}