derek.holloway
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94 lines
3.2 KiB
LLVM
94 lines
3.2 KiB
LLVM
; Test f128 floating-point strict truncations/extensions on z14.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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declare half @llvm.experimental.constrained.fptrunc.f16.f128(fp128, metadata, metadata)
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declare float @llvm.experimental.constrained.fptrunc.f32.f128(fp128, metadata, metadata)
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declare double @llvm.experimental.constrained.fptrunc.f64.f128(fp128, metadata, metadata)
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declare fp128 @llvm.experimental.constrained.fpext.f128.f16(half, metadata)
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declare fp128 @llvm.experimental.constrained.fpext.f128.f32(float, metadata)
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declare fp128 @llvm.experimental.constrained.fpext.f128.f64(double, metadata)
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; Test f128->f64.
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define double @f1(ptr %ptr) #0 {
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; CHECK-LABEL: f1:
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; CHECK: vl [[REG:%v[0-9]+]], 0(%r2)
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; CHECK: wflrx %f0, [[REG]], 0, 0
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; CHECK: br %r14
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%val = load fp128, ptr %ptr
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%res = call double @llvm.experimental.constrained.fptrunc.f64.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Test f128->f16.
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define half @f2_half(ptr %ptr) #0 {
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; CHECK-LABEL: f2_half:
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; CHECK: vl [[REG:%v[0-9]+]], 0(%r2)
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; CHECK: vst %v0, 160(%r15), 3
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; CHECK: brasl %r14, __trunctfhf2@PLT
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; CHECK: br %r14
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%val = load fp128, ptr %ptr
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%res = call half @llvm.experimental.constrained.fptrunc.f16.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret half %res
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}
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; Test f128->f32.
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define float @f2(ptr %ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: vl [[REG:%v[0-9]+]], 0(%r2)
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; CHECK: wflrx %f0, [[REG]], 0, 3
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; CHECK: ledbra %f0, 0, %f0, 0
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; CHECK: br %r14
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%val = load fp128, ptr %ptr
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%res = call float @llvm.experimental.constrained.fptrunc.f32.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %res
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}
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; Test f64->f128.
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define void @f3(ptr %dst, double %val) #0 {
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; CHECK-LABEL: f3:
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; CHECK: wflld [[RES:%v[0-9]+]], %f0
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; CHECK: vst [[RES]], 0(%r2)
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; CHECK: br %r14
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Test f32->f128.
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define void @f4(ptr %dst, float %val) #0 {
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; CHECK-LABEL: f4:
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; CHECK: ldebr %f0, %f0
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; CHECK: wflld [[RES:%v[0-9]+]], %f0
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; CHECK: vst [[RES]], 0(%r2)
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; CHECK: br %r14
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Test f16->f128.
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define void @f5(ptr %dst, half %val) #0 {
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; CHECK-LABEL: f5:
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; CHECK: brasl %r14, __extendhftf2@PLT
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; CHECK: br %r14
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f16(half %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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attributes #0 = { strictfp }
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