llvm/test/CodeGen/SystemZ/vec-max-05.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; Test vector maximum on z14.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s

declare double @fmax(double, double)
declare double @llvm.maxnum.f64(double, double)
declare <2 x double> @llvm.maxnum.v2f64(<2 x double>, <2 x double>)
declare double @llvm.maximum.f64(double, double)
declare <2 x double> @llvm.maximum.v2f64(<2 x double>, <2 x double>)

declare float @fmaxf(float, float)
declare float @llvm.maxnum.f32(float, float)
declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>)
declare float @llvm.maximum.f32(float, float)
declare <4 x float> @llvm.maximum.v4f32(<4 x float>, <4 x float>)

declare half @llvm.maxnum.f16(half, half)

declare fp128 @fmaxl(fp128, fp128)
declare fp128 @llvm.maxnum.f128(fp128, fp128)
declare fp128 @llvm.maximum.f128(fp128, fp128)

; Test the fmax library function.
define double @f1(double %dummy, double %val1, double %val2) nounwind {
; CHECK-LABEL: f1:
; CHECK:       # %bb.0:
; CHECK-NEXT:    stmg %r14, %r15, 112(%r15)
; CHECK-NEXT:    aghi %r15, -160
; CHECK-NEXT:    ldr %f0, %f2
; CHECK-NEXT:    ldr %f2, %f4
; CHECK-NEXT:    brasl %r14, fmax@PLT
; CHECK-NEXT:    lmg %r14, %r15, 272(%r15)
; CHECK-NEXT:    br %r14
  %ret = call double @fmax(double %val1, double %val2) readnone
  ret double %ret
}

; Test the f64 maxnum intrinsic.
define double @f2(double %dummy, double %val1, double %val2) {
; CHECK-LABEL: f2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    wfmaxdb %f0, %f2, %f4, 4
; CHECK-NEXT:    br %r14
  %ret = call double @llvm.maxnum.f64(double %val1, double %val2)
  ret double %ret
}

; Test the f64 maximum intrinsic.
define double @f3(double %dummy, double %val1, double %val2) {
; CHECK-LABEL: f3:
; CHECK:       # %bb.0:
; CHECK-NEXT:    wfmaxdb %f0, %f2, %f4, 1
; CHECK-NEXT:    br %r14
  %ret = call double @llvm.maximum.f64(double %val1, double %val2)
  ret double %ret
}

; Test a f64 constant compare/select resulting in maxnum.
define double @f4(double %dummy, double %val) {
; CHECK-LABEL: f4:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lzdr %f0
; CHECK-NEXT:    wfmaxdb %f0, %f2, %f0, 2
; CHECK-NEXT:    br %r14
  %cmp = fcmp ogt double %val, 0.0
  %ret = select i1 %cmp, double %val, double 0.0
  ret double %ret
}

; Test a f64 constant compare/select resulting in maximum.
define double @f5(double %dummy, double %val) {
; CHECK-LABEL: f5:
; CHECK:       # %bb.0:
; CHECK-NEXT:    ltdbr %f1, %f2
; CHECK-NEXT:    ldr %f0, %f2
; CHECK-NEXT:    bnler %r14
; CHECK-NEXT:  .LBB4_1:
; CHECK-NEXT:    lzdr %f0
; CHECK-NEXT:    br %r14
  %cmp = fcmp ugt double %val, 0.0
  %ret = select i1 %cmp, double %val, double 0.0
  ret double %ret
}

; Test the v2f64 maxnum intrinsic.
define <2 x double> @f6(<2 x double> %dummy, <2 x double> %val1, <2 x double> %val2) {
; CHECK-LABEL: f6:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vfmaxdb %v24, %v26, %v28, 4
; CHECK-NEXT:    br %r14
  %ret = call <2 x double> @llvm.maxnum.v2f64(<2 x double> %val1, <2 x double> %val2)
  ret <2 x double> %ret
}

; Test the v2f64 maximum intrinsic.
define <2 x double> @f7(<2 x double> %dummy, <2 x double> %val1, <2 x double> %val2) {
; CHECK-LABEL: f7:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vfmaxdb %v24, %v26, %v28, 1
; CHECK-NEXT:    br %r14
  %ret = call <2 x double> @llvm.maximum.v2f64(<2 x double> %val1, <2 x double> %val2)
  ret <2 x double> %ret
}

; Test the fmaxf library function.
define float @f11(float %dummy, float %val1, float %val2) nounwind {
; CHECK-LABEL: f11:
; CHECK:       # %bb.0:
; CHECK-NEXT:    stmg %r14, %r15, 112(%r15)
; CHECK-NEXT:    aghi %r15, -160
; CHECK-NEXT:    ldr %f0, %f2
; CHECK-NEXT:    ldr %f2, %f4
; CHECK-NEXT:    brasl %r14, fmaxf@PLT
; CHECK-NEXT:    lmg %r14, %r15, 272(%r15)
; CHECK-NEXT:    br %r14
  %ret = call float @fmaxf(float %val1, float %val2) readnone
  ret float %ret
}

; Test the f16 maxnum intrinsic.
define half @f12_half(half %dummy, half %val1, half %val2) {
; CHECK-LABEL: f12_half:
; CHECK:       # %bb.0:
; CHECK-NEXT:    stmg %r14, %r15, 112(%r15)
; CHECK-NEXT:    .cfi_offset %r14, -48
; CHECK-NEXT:    .cfi_offset %r15, -40
; CHECK-NEXT:    aghi %r15, -176
; CHECK-NEXT:    .cfi_def_cfa_offset 336
; CHECK-NEXT:    std %f8, 168(%r15) # 8-byte Spill
; CHECK-NEXT:    std %f9, 160(%r15) # 8-byte Spill
; CHECK-NEXT:    .cfi_offset %f8, -168
; CHECK-NEXT:    .cfi_offset %f9, -176
; CHECK-NEXT:    ldr %f0, %f4
; CHECK-NEXT:    ldr %f8, %f2
; CHECK-NEXT:    brasl %r14, __extendhfsf2@PLT
; CHECK-NEXT:    ldr %f9, %f0
; CHECK-NEXT:    ldr %f0, %f8
; CHECK-NEXT:    brasl %r14, __extendhfsf2@PLT
; CHECK-NEXT:    wfmaxsb %f0, %f0, %f9, 4
; CHECK-NEXT:    brasl %r14, __truncsfhf2@PLT
; CHECK-NEXT:    ld %f8, 168(%r15) # 8-byte Reload
; CHECK-NEXT:    ld %f9, 160(%r15) # 8-byte Reload
; CHECK-NEXT:    lmg %r14, %r15, 288(%r15)
; CHECK-NEXT:    br %r14
  %ret = call half @llvm.maxnum.f16(half %val1, half %val2)
  ret half %ret
}

; Test the f32 maxnum intrinsic.
define float @f12(float %dummy, float %val1, float %val2) {
; CHECK-LABEL: f12:
; CHECK:       # %bb.0:
; CHECK-NEXT:    wfmaxsb %f0, %f2, %f4, 4
; CHECK-NEXT:    br %r14
  %ret = call float @llvm.maxnum.f32(float %val1, float %val2)
  ret float %ret
}

; Test the f32 maximum intrinsic.
define float @f13(float %dummy, float %val1, float %val2) {
; CHECK-LABEL: f13:
; CHECK:       # %bb.0:
; CHECK-NEXT:    wfmaxsb %f0, %f2, %f4, 1
; CHECK-NEXT:    br %r14
  %ret = call float @llvm.maximum.f32(float %val1, float %val2)
  ret float %ret
}

; Test a f32 constant compare/select resulting in maxnum.
define float @f14(float %dummy, float %val) {
; CHECK-LABEL: f14:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lzer %f0
; CHECK-NEXT:    wfmaxsb %f0, %f2, %f0, 2
; CHECK-NEXT:    br %r14
  %cmp = fcmp ogt float %val, 0.0
  %ret = select i1 %cmp, float %val, float 0.0
  ret float %ret
}

; Test a f32 constant compare/select resulting in maximum.
define float @f15(float %dummy, float %val) {
; CHECK-LABEL: f15:
; CHECK:       # %bb.0:
; CHECK-NEXT:    ltebr %f1, %f2
; CHECK-NEXT:    ldr %f0, %f2
; CHECK-NEXT:    bnler %r14
; CHECK-NEXT:  .LBB12_1:
; CHECK-NEXT:    lzer %f0
; CHECK-NEXT:    br %r14
  %cmp = fcmp ugt float %val, 0.0
  %ret = select i1 %cmp, float %val, float 0.0
  ret float %ret
}

; Test the v4f32 maxnum intrinsic.
define <4 x float> @f16(<4 x float> %dummy, <4 x float> %val1,
; CHECK-LABEL: f16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vfmaxsb %v24, %v26, %v28, 4
; CHECK-NEXT:    br %r14
                        <4 x float> %val2) {
  %ret = call <4 x float> @llvm.maxnum.v4f32(<4 x float> %val1, <4 x float> %val2)
  ret <4 x float> %ret
}

; Test the v4f32 maximum intrinsic.
define <4 x float> @f17(<4 x float> %dummy, <4 x float> %val1,
; CHECK-LABEL: f17:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vfmaxsb %v24, %v26, %v28, 1
; CHECK-NEXT:    br %r14
                        <4 x float> %val2) {
  %ret = call <4 x float> @llvm.maximum.v4f32(<4 x float> %val1, <4 x float> %val2)
  ret <4 x float> %ret
}

; Test the fmaxl library function.
define void @f21(ptr %ptr1, ptr %ptr2, ptr %dst) nounwind {
; CHECK-LABEL: f21:
; CHECK:       # %bb.0:
; CHECK-NEXT:    stmg %r13, %r15, 104(%r15)
; CHECK-NEXT:    aghi %r15, -208
; CHECK-NEXT:    vl %v0, 0(%r2), 3
; CHECK-NEXT:    vl %v1, 0(%r3), 3
; CHECK-NEXT:    lgr %r13, %r4
; CHECK-NEXT:    la %r2, 192(%r15)
; CHECK-NEXT:    la %r3, 176(%r15)
; CHECK-NEXT:    la %r4, 160(%r15)
; CHECK-NEXT:    vst %v1, 160(%r15), 3
; CHECK-NEXT:    vst %v0, 176(%r15), 3
; CHECK-NEXT:    brasl %r14, fmaxl@PLT
; CHECK-NEXT:    vl %v0, 192(%r15), 3
; CHECK-NEXT:    vst %v0, 0(%r13), 3
; CHECK-NEXT:    lmg %r13, %r15, 312(%r15)
; CHECK-NEXT:    br %r14
  %val1 = load fp128, ptr %ptr1
  %val2 = load fp128, ptr %ptr2
  %res = call fp128 @fmaxl(fp128 %val1, fp128 %val2) readnone
  store fp128 %res, ptr %dst
  ret void
}

; Test the f128 maxnum intrinsic.
define void @f22(ptr %ptr1, ptr %ptr2, ptr %dst) {
; CHECK-LABEL: f22:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r2), 3
; CHECK-NEXT:    vl %v1, 0(%r3), 3
; CHECK-NEXT:    wfmaxxb %v0, %v0, %v1, 4
; CHECK-NEXT:    vst %v0, 0(%r4), 3
; CHECK-NEXT:    br %r14
  %val1 = load fp128, ptr %ptr1
  %val2 = load fp128, ptr %ptr2
  %res = call fp128 @llvm.maxnum.f128(fp128 %val1, fp128 %val2)
  store fp128 %res, ptr %dst
  ret void
}

; Test the f128 maximum intrinsic.
define void @f23(ptr %ptr1, ptr %ptr2, ptr %dst) {
; CHECK-LABEL: f23:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r2), 3
; CHECK-NEXT:    vl %v1, 0(%r3), 3
; CHECK-NEXT:    wfmaxxb %v0, %v0, %v1, 1
; CHECK-NEXT:    vst %v0, 0(%r4), 3
; CHECK-NEXT:    br %r14
  %val1 = load fp128, ptr %ptr1
  %val2 = load fp128, ptr %ptr2
  %res = call fp128 @llvm.maximum.f128(fp128 %val1, fp128 %val2)
  store fp128 %res, ptr %dst
  ret void
}

; Test a f128 constant compare/select resulting in maxnum.
define void @f24(ptr %ptr, ptr %dst) {
; CHECK-LABEL: f24:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r2), 3
; CHECK-NEXT:    vzero %v1
; CHECK-NEXT:    wfmaxxb %v0, %v0, %v1, 2
; CHECK-NEXT:    vst %v0, 0(%r3), 3
; CHECK-NEXT:    br %r14
  %val = load fp128, ptr %ptr
  %cmp = fcmp ogt fp128 %val, 0xL00000000000000000000000000000000
  %res = select i1 %cmp, fp128 %val, fp128 0xL00000000000000000000000000000000
  store fp128 %res, ptr %dst
  ret void
}

; Test a f128 constant compare/select resulting in maximum.
define void @f25(ptr %ptr, ptr %dst) {
; CHECK-LABEL: f25:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r2), 3
; CHECK-NEXT:    vzero %v1
; CHECK-NEXT:    wfcxb %v0, %v1
; CHECK-NEXT:    jnle .LBB19_2
; CHECK-NEXT:  # %bb.1:
; CHECK-NEXT:    vzero %v0
; CHECK-NEXT:  .LBB19_2:
; CHECK-NEXT:    vst %v0, 0(%r3), 3
; CHECK-NEXT:    br %r14
  %val = load fp128, ptr %ptr
  %cmp = fcmp ugt fp128 %val, 0xL00000000000000000000000000000000
  %res = select i1 %cmp, fp128 %val, fp128 0xL00000000000000000000000000000000
  store fp128 %res, ptr %dst
  ret void
}