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; Test strict 128-bit floating-point subtraction.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare fp128 @llvm.experimental.constrained.fsub.f128(fp128, fp128, metadata, metadata)
declare fp128 @llvm.experimental.constrained.fpext.f128.f32(float, metadata)
; There is no memory form of 128-bit subtraction.
define void @f1(ptr %ptr, float %f2) strictfp {
; CHECK-LABEL: f1:
; CHECK-DAG: lxebr %f0, %f0
; CHECK-DAG: ld %f1, 0(%r2)
; CHECK-DAG: ld %f3, 8(%r2)
; CHECK: sxbr %f1, %f0
; CHECK: std %f1, 0(%r2)
; CHECK: std %f3, 8(%r2)
; CHECK: br %r14
%f1 = load fp128, ptr %ptr
%f2x = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %f2,
metadata !"fpexcept.strict") #0
%sum = call fp128 @llvm.experimental.constrained.fsub.f128(
fp128 %f1, fp128 %f2x,
metadata !"round.dynamic",
metadata !"fpexcept.strict") #0
store fp128 %sum, ptr %ptr
ret void
}
attributes #0 = { strictfp }
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