31 lines
945 B
LLVM
31 lines
945 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
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define i64 @muladd_demand(i64 %x, i64 %y) {
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; CHECK-LABEL: muladd_demand:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rsi, %rax
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; CHECK-NEXT: shll $6, %edi
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; CHECK-NEXT: subl %edi, %eax
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; CHECK-NEXT: shlq $47, %rax
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; CHECK-NEXT: retq
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%m = mul i64 %x, 131008 ; 0x0001ffc0
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%a = add i64 %m, %y
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%r = shl i64 %a, 47
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ret i64 %r
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}
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define <2 x i64> @muladd_demand_commute(<2 x i64> %x, <2 x i64> %y) {
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; CHECK-LABEL: muladd_demand_commute:
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; CHECK: # %bb.0:
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; CHECK-NEXT: psllq $6, %xmm0
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; CHECK-NEXT: psubq %xmm0, %xmm1
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; CHECK-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retq
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%m = mul <2 x i64> %x, <i64 131008, i64 131008>
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%a = add <2 x i64> %y, %m
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%r = and <2 x i64> %a, <i64 131071, i64 131071>
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ret <2 x i64> %r
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}
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