test/CodeGen/X86/rdseed-schedule.ll

   1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
   2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=x86-64 -mattr=+rdseed | FileCheck %s --check-prefix=CHECK --check-prefix=GENERIC
   3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=goldmont | FileCheck %s --check-prefix=CHECK --check-prefix=GOLDMONT
   4 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=broadwell | FileCheck %s --check-prefix=CHECK --check-prefix=BROADWELL
   5 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skylake | FileCheck %s --check-prefix=CHECK --check-prefix=SKYLAKE
   6 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skx | FileCheck %s --check-prefix=CHECK --check-prefix=SKX
   7 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=znver1 | FileCheck %s --check-prefix=CHECK --check-prefix=ZNVER1
   8
   9 declare {i16, i32} @llvm.x86.rdseed.16()
  10 declare {i32, i32} @llvm.x86.rdseed.32()
  11 declare {i64, i32} @llvm.x86.rdseed.64()
  12
  13 define i16 @test_rdseed_16(i16* %random_val) {
  14 ; GENERIC-LABEL: test_rdseed_16:
  15 ; GENERIC:       # %bb.0:
  16 ; GENERIC-NEXT:    rdseedw %ax # sched: [100:0.33]
  17 ; GENERIC-NEXT:    retq # sched: [1:1.00]
  18 ;
  19 ; GOLDMONT-LABEL: test_rdseed_16:
  20 ; GOLDMONT:       # %bb.0:
  21 ; GOLDMONT-NEXT:    rdseedw %ax # sched: [100:1.00]
  22 ; GOLDMONT-NEXT:    retq # sched: [4:1.00]
  23 ;
  24 ; BROADWELL-LABEL: test_rdseed_16:
  25 ; BROADWELL:       # %bb.0:
  26 ; BROADWELL-NEXT:    rdseedw %ax # sched: [100:0.25]
  27 ; BROADWELL-NEXT:    retq # sched: [7:1.00]
  28 ;
  29 ; SKYLAKE-LABEL: test_rdseed_16:
  30 ; SKYLAKE:       # %bb.0:
  31 ; SKYLAKE-NEXT:    rdseedw %ax # sched: [100:0.25]
  32 ; SKYLAKE-NEXT:    retq # sched: [7:1.00]
  33 ;
  34 ; SKX-LABEL: test_rdseed_16:
  35 ; SKX:       # %bb.0:
  36 ; SKX-NEXT:    rdseedw %ax # sched: [100:0.25]
  37 ; SKX-NEXT:    retq # sched: [7:1.00]
  38 ;
  39 ; ZNVER1-LABEL: test_rdseed_16:
  40 ; ZNVER1:       # %bb.0:
  41 ; ZNVER1-NEXT:    rdseedw %ax # sched: [100:?]
  42 ; ZNVER1-NEXT:    retq # sched: [1:0.50]
  43   %call = call {i16, i32} @llvm.x86.rdseed.16()
  44   %randval = extractvalue {i16, i32} %call, 0
  45   ret i16 %randval
  46 }
  47
  48 define i32 @test_rdseed_32(i16* %random_val) {
  49 ; GENERIC-LABEL: test_rdseed_32:
  50 ; GENERIC:       # %bb.0:
  51 ; GENERIC-NEXT:    rdseedl %eax # sched: [100:0.33]
  52 ; GENERIC-NEXT:    retq # sched: [1:1.00]
  53 ;
  54 ; GOLDMONT-LABEL: test_rdseed_32:
  55 ; GOLDMONT:       # %bb.0:
  56 ; GOLDMONT-NEXT:    rdseedl %eax # sched: [100:1.00]
  57 ; GOLDMONT-NEXT:    retq # sched: [4:1.00]
  58 ;
  59 ; BROADWELL-LABEL: test_rdseed_32:
  60 ; BROADWELL:       # %bb.0:
  61 ; BROADWELL-NEXT:    rdseedl %eax # sched: [100:0.25]
  62 ; BROADWELL-NEXT:    retq # sched: [7:1.00]
  63 ;
  64 ; SKYLAKE-LABEL: test_rdseed_32:
  65 ; SKYLAKE:       # %bb.0:
  66 ; SKYLAKE-NEXT:    rdseedl %eax # sched: [100:0.25]
  67 ; SKYLAKE-NEXT:    retq # sched: [7:1.00]
  68 ;
  69 ; SKX-LABEL: test_rdseed_32:
  70 ; SKX:       # %bb.0:
  71 ; SKX-NEXT:    rdseedl %eax # sched: [100:0.25]
  72 ; SKX-NEXT:    retq # sched: [7:1.00]
  73 ;
  74 ; ZNVER1-LABEL: test_rdseed_32:
  75 ; ZNVER1:       # %bb.0:
  76 ; ZNVER1-NEXT:    rdseedl %eax # sched: [100:?]
  77 ; ZNVER1-NEXT:    retq # sched: [1:0.50]
  78   %call = call {i32, i32} @llvm.x86.rdseed.32()
  79   %randval = extractvalue {i32, i32} %call, 0
  80   ret i32 %randval
  81 }
  82
  83 define i64 @test_rdseed_64(i64* %random_val) {
  84 ; GENERIC-LABEL: test_rdseed_64:
  85 ; GENERIC:       # %bb.0:
  86 ; GENERIC-NEXT:    rdseedq %rax # sched: [100:0.33]
  87 ; GENERIC-NEXT:    retq # sched: [1:1.00]
  88 ;
  89 ; GOLDMONT-LABEL: test_rdseed_64:
  90 ; GOLDMONT:       # %bb.0:
  91 ; GOLDMONT-NEXT:    rdseedq %rax # sched: [100:1.00]
  92 ; GOLDMONT-NEXT:    retq # sched: [4:1.00]
  93 ;
  94 ; BROADWELL-LABEL: test_rdseed_64:
  95 ; BROADWELL:       # %bb.0:
  96 ; BROADWELL-NEXT:    rdseedq %rax # sched: [100:0.25]
  97 ; BROADWELL-NEXT:    retq # sched: [7:1.00]
  98 ;
  99 ; SKYLAKE-LABEL: test_rdseed_64:
 100 ; SKYLAKE:       # %bb.0:
 101 ; SKYLAKE-NEXT:    rdseedq %rax # sched: [100:0.25]
 102 ; SKYLAKE-NEXT:    retq # sched: [7:1.00]
 103 ;
 104 ; SKX-LABEL: test_rdseed_64:
 105 ; SKX:       # %bb.0:
 106 ; SKX-NEXT:    rdseedq %rax # sched: [100:0.25]
 107 ; SKX-NEXT:    retq # sched: [7:1.00]
 108 ;
 109 ; ZNVER1-LABEL: test_rdseed_64:
 110 ; ZNVER1:       # %bb.0:
 111 ; ZNVER1-NEXT:    rdseedq %rax # sched: [100:?]
 112 ; ZNVER1-NEXT:    retq # sched: [1:0.50]
 113   %call = call {i64, i32} @llvm.x86.rdseed.64()
 114   %randval = extractvalue {i64, i32} %call, 0
 115   ret i64 %randval
 116 }