1 ; Test strict 128-bit floating-point subtraction.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 declare fp128 @llvm.experimental.constrained.fsub.f128(fp128, fp128, metadata, metadata)
6 declare fp128 @llvm.experimental.constrained.fpext.f128.f32(float, metadata)
8 ; There is no memory form of 128-bit subtraction.
9 define void @f1(ptr %ptr, float %f2) strictfp {
11 ; CHECK-DAG: lxebr %f0, %f0
12 ; CHECK-DAG: ld %f1, 0(%r2)
13 ; CHECK-DAG: ld %f3, 8(%r2)
14 ; CHECK: sxbr %f1, %f0
15 ; CHECK: std %f1, 0(%r2)
16 ; CHECK: std %f3, 8(%r2)
18 %f1 = load fp128, ptr %ptr
19 %f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %f2,
20 metadata !"fpexcept.strict") #0
21 %sum = call fp128 @llvm.experimental.constrained.fsub.f128(
22 fp128 %f1, fp128 %f2x,
23 metadata !"round.dynamic",
24 metadata !"fpexcept.strict") #0
25 store fp128 %sum, ptr %ptr
29 attributes #0 = { strictfp }