third_party/llvm-7.0/llvm/test/Transforms/InstCombine/X86/x86-movmsk.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

;
; DemandedBits - MOVMSK zeros the upper bits of the result.
;

define i32 @test_upper_x86_mmx_pmovmskb(x86_mmx %a0) {
; CHECK-LABEL: @test_upper_x86_mmx_pmovmskb(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx %a0)
  %2 = and i32 %1, 255
  ret i32 %2
}

define i32 @test_upper_x86_sse_movmsk_ps(<4 x float> %a0) {
; CHECK-LABEL: @test_upper_x86_sse_movmsk_ps(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> %a0)
  %2 = and i32 %1, 15
  ret i32 %2
}

define i32 @test_upper_x86_sse2_movmsk_pd(<2 x double> %a0) {
; CHECK-LABEL: @test_upper_x86_sse2_movmsk_pd(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> %a0)
  %2 = and i32 %1, 3
  ret i32 %2
}

define i32 @test_upper_x86_sse2_pmovmskb_128(<16 x i8> %a0) {
; CHECK-LABEL: @test_upper_x86_sse2_pmovmskb_128(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> %a0)
  %2 = and i32 %1, 65535
  ret i32 %2
}

define i32 @test_upper_x86_avx_movmsk_ps_256(<8 x float> %a0) {
; CHECK-LABEL: @test_upper_x86_avx_movmsk_ps_256(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> %a0)
  %2 = and i32 %1, 255
  ret i32 %2
}

define i32 @test_upper_x86_avx_movmsk_pd_256(<4 x double> %a0) {
; CHECK-LABEL: @test_upper_x86_avx_movmsk_pd_256(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> %a0)
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> %a0)
  %2 = and i32 %1, 15
  ret i32 %2
}

; llvm.x86.avx2.pmovmskb uses the whole of the 32-bit register.

;
; DemandedBits - If we don't use the lower bits then we just return zero.
;

define i32 @test_lower_x86_mmx_pmovmskb(x86_mmx %a0) {
; CHECK-LABEL: @test_lower_x86_mmx_pmovmskb(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx %a0)
  %2 = and i32 %1, -256
  ret i32 %2
}

define i32 @test_lower_x86_sse_movmsk_ps(<4 x float> %a0) {
; CHECK-LABEL: @test_lower_x86_sse_movmsk_ps(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> %a0)
  %2 = and i32 %1, -16
  ret i32 %2
}

define i32 @test_lower_x86_sse2_movmsk_pd(<2 x double> %a0) {
; CHECK-LABEL: @test_lower_x86_sse2_movmsk_pd(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> %a0)
  %2 = and i32 %1, -4
  ret i32 %2
}

define i32 @test_lower_x86_sse2_pmovmskb_128(<16 x i8> %a0) {
; CHECK-LABEL: @test_lower_x86_sse2_pmovmskb_128(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> %a0)
  %2 = and i32 %1, -65536
  ret i32 %2
}

define i32 @test_lower_x86_avx_movmsk_ps_256(<8 x float> %a0) {
; CHECK-LABEL: @test_lower_x86_avx_movmsk_ps_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> %a0)
  %2 = and i32 %1, -256
  ret i32 %2
}

define i32 @test_lower_x86_avx_movmsk_pd_256(<4 x double> %a0) {
; CHECK-LABEL: @test_lower_x86_avx_movmsk_pd_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> %a0)
  %2 = and i32 %1, -16
  ret i32 %2
}

; llvm.x86.avx2.pmovmskb uses the whole of the 32-bit register.

;
; Constant Folding (UNDEF -> ZERO)
;

define i32 @undef_x86_mmx_pmovmskb() {
; CHECK-LABEL: @undef_x86_mmx_pmovmskb(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx undef)
  ret i32 %1
}

define i32 @undef_x86_sse_movmsk_ps() {
; CHECK-LABEL: @undef_x86_sse_movmsk_ps(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> undef)
  ret i32 %1
}

define i32 @undef_x86_sse2_movmsk_pd() {
; CHECK-LABEL: @undef_x86_sse2_movmsk_pd(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> undef)
  ret i32 %1
}

define i32 @undef_x86_sse2_pmovmskb_128() {
; CHECK-LABEL: @undef_x86_sse2_pmovmskb_128(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> undef)
  ret i32 %1
}

define i32 @undef_x86_avx_movmsk_ps_256() {
; CHECK-LABEL: @undef_x86_avx_movmsk_ps_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> undef)
  ret i32 %1
}

define i32 @undef_x86_avx_movmsk_pd_256() {
; CHECK-LABEL: @undef_x86_avx_movmsk_pd_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> undef)
  ret i32 %1
}

define i32 @undef_x86_avx2_pmovmskb() {
; CHECK-LABEL: @undef_x86_avx2_pmovmskb(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx2.pmovmskb(<32 x i8> undef)
  ret i32 %1
}

;
; Constant Folding (ZERO -> ZERO)
;

define i32 @zero_x86_mmx_pmovmskb() {
; CHECK-LABEL: @zero_x86_mmx_pmovmskb(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx bitcast (<1 x i64> zeroinitializer to x86_mmx))
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = bitcast <1 x i64> zeroinitializer to x86_mmx
  %2 = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx %1)
  ret i32 %2
}

define i32 @zero_x86_sse_movmsk_ps() {
; CHECK-LABEL: @zero_x86_sse_movmsk_ps(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> zeroinitializer)
  ret i32 %1
}

define i32 @zero_x86_sse2_movmsk_pd() {
; CHECK-LABEL: @zero_x86_sse2_movmsk_pd(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> zeroinitializer)
  ret i32 %1
}

define i32 @zero_x86_sse2_pmovmskb_128() {
; CHECK-LABEL: @zero_x86_sse2_pmovmskb_128(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> zeroinitializer)
  ret i32 %1
}

define i32 @zero_x86_avx_movmsk_ps_256() {
; CHECK-LABEL: @zero_x86_avx_movmsk_ps_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> zeroinitializer)
  ret i32 %1
}

define i32 @zero_x86_avx_movmsk_pd_256() {
; CHECK-LABEL: @zero_x86_avx_movmsk_pd_256(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> zeroinitializer)
  ret i32 %1
}

define i32 @zero_x86_avx2_pmovmskb() {
; CHECK-LABEL: @zero_x86_avx2_pmovmskb(
; CHECK-NEXT:    ret i32 0
;
  %1 = call i32 @llvm.x86.avx2.pmovmskb(<32 x i8> zeroinitializer)
  ret i32 %1
}

;
; Constant Folding
;

define i32 @fold_x86_mmx_pmovmskb() {
; CHECK-LABEL: @fold_x86_mmx_pmovmskb(
; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx bitcast (<8 x i8> <i8 0, i8 -1, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 0> to x86_mmx))
; CHECK-NEXT:    ret i32 [[TMP1]]
;
  %1 = bitcast <8 x i8> <i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256> to x86_mmx
  %2 = call i32 @llvm.x86.mmx.pmovmskb(x86_mmx %1)
  ret i32 %2
}

define i32 @fold_x86_sse_movmsk_ps() {
; CHECK-LABEL: @fold_x86_sse_movmsk_ps(
; CHECK-NEXT:    ret i32 10
;
  %1 = call i32 @llvm.x86.sse.movmsk.ps(<4 x float> <float 1.0, float -1.0, float 100.0, float -200.0>)
  ret i32 %1
}

define i32 @fold_x86_sse2_movmsk_pd() {
; CHECK-LABEL: @fold_x86_sse2_movmsk_pd(
; CHECK-NEXT:    ret i32 2
;
  %1 = call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> <double 1.0, double -1.0>)
  ret i32 %1
}

define i32 @fold_x86_sse2_pmovmskb_128() {
; CHECK-LABEL: @fold_x86_sse2_pmovmskb_128(
; CHECK-NEXT:    ret i32 5654
;
  %1 = call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> <i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256, i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256>)
  ret i32 %1
}

define i32 @fold_x86_avx_movmsk_ps_256() {
; CHECK-LABEL: @fold_x86_avx_movmsk_ps_256(
; CHECK-NEXT:    ret i32 170
;
  %1 = call i32 @llvm.x86.avx.movmsk.ps.256(<8 x float> <float 1.0, float -1.0, float 100.0, float -200.0, float +0.0, float -0.0, float 100000.0, float -5000000.0>)
  ret i32 %1
}

define i32 @fold_x86_avx_movmsk_pd_256() {
; CHECK-LABEL: @fold_x86_avx_movmsk_pd_256(
; CHECK-NEXT:    ret i32 10
;
  %1 = call i32 @llvm.x86.avx.movmsk.pd.256(<4 x double> <double 1.0, double -1.0, double 100.0, double -200.0>)
  ret i32 %1
}

define i32 @fold_x86_avx2_pmovmskb() {
; CHECK-LABEL: @fold_x86_avx2_pmovmskb(
; CHECK-NEXT:    ret i32 370546176
;
  %1 = call i32 @llvm.x86.avx2.pmovmskb(<32 x i8> <i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256, i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256, i8 0, i8 255, i8 -1, i8 127, i8 -127, i8 63, i8 64, i8 256>)
  ret i32 %1
}

declare i32 @llvm.x86.mmx.pmovmskb(x86_mmx)

declare i32 @llvm.x86.sse.movmsk.ps(<4 x float>)
declare i32 @llvm.x86.sse2.movmsk.pd(<2 x double>)
declare i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8>)

declare i32 @llvm.x86.avx.movmsk.ps.256(<8 x float>)
declare i32 @llvm.x86.avx.movmsk.pd.256(<4 x double>)
declare i32 @llvm.x86.avx2.pmovmskb(<32 x i8>)