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