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[X86] Add test case for PR47000. NFC
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@topperc
topperc committed Aug 5, 2020
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151 changes: 151 additions & 0 deletions llvm/test/CodeGen/X86/pr47000.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_rip
; RUN: llc < %s -mcpu=pentium4 -O0 | FileCheck %s

target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128"
target triple = "i386-unknown-linux-unknown"

define <4 x half> @doTheTestMod(<4 x half> %0, <4 x half> %1) nounwind {
; CHECK-LABEL: doTheTestMod:
; CHECK: # %bb.0: # %Entry
; CHECK-NEXT: pushl %ebp
; CHECK-NEXT: pushl %ebx
; CHECK-NEXT: pushl %edi
; CHECK-NEXT: pushl %esi
; CHECK-NEXT: subl $124, %esp
; CHECK-NEXT: movl 144(%esp), %eax
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: movw 176(%esp), %dx
; CHECK-NEXT: movw 172(%esp), %si
; CHECK-NEXT: movw 164(%esp), %di
; CHECK-NEXT: movw 166(%esp), %bx
; CHECK-NEXT: movw 160(%esp), %bp
; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movw 156(%esp), %ax
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: movw 148(%esp), %ax
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: movw 150(%esp), %ax
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %ax # 2-byte Reload
; CHECK-NEXT: movw %ax, 112(%esp)
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %ax # 2-byte Reload
; CHECK-NEXT: movw %ax, 114(%esp)
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %ax # 2-byte Reload
; CHECK-NEXT: movw %ax, 116(%esp)
; CHECK-NEXT: movw %bp, 118(%esp)
; CHECK-NEXT: movw %dx, 110(%esp)
; CHECK-NEXT: movw %si, 108(%esp)
; CHECK-NEXT: movw %bx, 106(%esp)
; CHECK-NEXT: movw %di, 104(%esp)
; CHECK-NEXT: movzwl 118(%esp), %edx
; CHECK-NEXT: movzwl 116(%esp), %esi
; CHECK-NEXT: movzwl 114(%esp), %edi
; CHECK-NEXT: movzwl 112(%esp), %ebx
; CHECK-NEXT: movzwl 110(%esp), %ebp
; CHECK-NEXT: movzwl 108(%esp), %eax
; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movzwl 106(%esp), %eax
; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movzwl 104(%esp), %eax
; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: movl %ebx, (%eax)
; CHECK-NEXT: movl %ecx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %esi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %ebp, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; CHECK-NEXT: movl %ecx, (%eax)
; CHECK-NEXT: fstpt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps 4(%eax)
; CHECK-NEXT: fldt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Reload
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll fmodf
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll __gnu_f2h_ieee
; CHECK-NEXT: movl %esp, %ecx
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload
; CHECK-NEXT: movl %edx, (%ecx)
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; CHECK-NEXT: movl %ecx, (%eax)
; CHECK-NEXT: fstpt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps 4(%eax)
; CHECK-NEXT: fldt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Reload
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll fmodf
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll __gnu_f2h_ieee
; CHECK-NEXT: movl %esp, %ecx
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload
; CHECK-NEXT: movl %edx, (%ecx)
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; CHECK-NEXT: movl %ecx, (%eax)
; CHECK-NEXT: fstpt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps 4(%eax)
; CHECK-NEXT: fldt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Reload
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll fmodf
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll __gnu_f2h_ieee
; CHECK-NEXT: movl %esp, %ecx
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload
; CHECK-NEXT: movl %edx, (%ecx)
; CHECK-NEXT: movw %ax, {{[-0-9]+}}(%e{{[sb]}}p) # 2-byte Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; CHECK-NEXT: movl %ecx, (%eax)
; CHECK-NEXT: fstpt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Spill
; CHECK-NEXT: calll __gnu_h2f_ieee
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps 4(%eax)
; CHECK-NEXT: fldt {{[-0-9]+}}(%e{{[sb]}}p) # 10-byte Folded Reload
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll fmodf
; CHECK-NEXT: movl %esp, %eax
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: calll __gnu_f2h_ieee
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; CHECK-NEXT: movw %ax, 6(%ecx)
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %ax # 2-byte Reload
; CHECK-NEXT: movw %ax, 4(%ecx)
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %dx # 2-byte Reload
; CHECK-NEXT: movw %dx, 2(%ecx)
; CHECK-NEXT: movw {{[-0-9]+}}(%e{{[sb]}}p), %si # 2-byte Reload
; CHECK-NEXT: movw %si, (%ecx)
; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; CHECK-NEXT: addl $124, %esp
; CHECK-NEXT: popl %esi
; CHECK-NEXT: popl %edi
; CHECK-NEXT: popl %ebx
; CHECK-NEXT: popl %ebp
; CHECK-NEXT: retl $4
Entry:
%x = alloca <4 x half>, align 8
%y = alloca <4 x half>, align 8
store <4 x half> %0, <4 x half>* %x, align 8
store <4 x half> %1, <4 x half>* %y, align 8
%2 = load <4 x half>, <4 x half>* %x, align 8
%3 = load <4 x half>, <4 x half>* %y, align 8
%4 = frem <4 x half> %2, %3
ret <4 x half> %4
}

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