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llvm-project/llvm/test/CodeGen/Mips/madd-msub.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -march=mips -mcpu=mips32 < %s | FileCheck %s -check-prefixes=ALL,32
; RUN: llc -march=mips -mcpu=mips32r2 < %s | FileCheck %s -check-prefixes=ALL,32
; RUN: llc -march=mips -mcpu=mips32r6 < %s | FileCheck %s -check-prefixes=ALL,32R6
; RUN: llc -march=mips -mcpu=mips32r2 -mattr=dsp < %s | FileCheck %s -check-prefix=DSP
; RUN: llc -march=mips -mcpu=mips64 -target-abi n64 < %s | FileCheck %s -check-prefixes=ALL,64
; RUN: llc -march=mips -mcpu=mips64r2 -target-abi n64 < %s | FileCheck %s -check-prefixes=ALL,64
; RUN: llc -march=mips -mcpu=mips64r6 -target-abi n64 < %s | FileCheck %s -check-prefixes=ALL,64R6
; RUN: llc -march=mips -mattr=mips16 < %s | FileCheck %s -check-prefixes=ALL,16
define i64 @madd1(i32 %a, i32 %b, i32 %c) nounwind readnone {
; 32-LABEL: madd1:
; 32: # %bb.0: # %entry
; 32-NEXT: sra $1, $6, 31
; 32-NEXT: mtlo $6
; 32-NEXT: mthi $1
; 32-NEXT: madd $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: madd1:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $5, $4
; 32R6-NEXT: addu $3, $1, $6
; 32R6-NEXT: sltu $1, $3, $1
; 32R6-NEXT: muh $2, $5, $4
; 32R6-NEXT: sra $4, $6, 31
; 32R6-NEXT: addu $2, $2, $4
; 32R6-NEXT: jr $ra
; 32R6-NEXT: addu $2, $2, $1
;
; DSP-LABEL: madd1:
; DSP: # %bb.0: # %entry
; DSP-NEXT: sra $1, $6, 31
; DSP-NEXT: mtlo $6, $ac0
; DSP-NEXT: mthi $1, $ac0
; DSP-NEXT: madd $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: madd1:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $4, 0
; 64-NEXT: sll $2, $5, 0
; 64-NEXT: dmult $2, $1
; 64-NEXT: mflo $1
; 64-NEXT: sll $2, $6, 0
; 64-NEXT: jr $ra
; 64-NEXT: daddu $2, $1, $2
;
; 64R6-LABEL: madd1:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $4, 0
; 64R6-NEXT: sll $2, $5, 0
; 64R6-NEXT: dmul $1, $2, $1
; 64R6-NEXT: sll $2, $6, 0
; 64R6-NEXT: jr $ra
; 64R6-NEXT: daddu $2, $1, $2
;
; 16-LABEL: madd1:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $3
; 16-NEXT: sra $4, $6, 31
; 16-NEXT: addu $4, $3, $4
; 16-NEXT: addu $3, $2, $6
; 16-NEXT: sltu $3, $2
; 16-NEXT: move $2, $24
; 16-NEXT: addu $2, $4, $2
; 16-NEXT: jrc $ra
entry:
%conv = sext i32 %a to i64
%conv2 = sext i32 %b to i64
%mul = mul nsw i64 %conv2, %conv
%conv4 = sext i32 %c to i64
%add = add nsw i64 %mul, %conv4
ret i64 %add
}
define i64 @madd2(i32 zeroext %a, i32 zeroext %b, i32 zeroext %c) nounwind readnone {
; 32-LABEL: madd2:
; 32: # %bb.0: # %entry
; 32-NEXT: addiu $1, $zero, 0
; 32-NEXT: mtlo $6
; 32-NEXT: mthi $1
; 32-NEXT: maddu $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: madd2:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $5, $4
; 32R6-NEXT: addu $3, $1, $6
; 32R6-NEXT: sltu $1, $3, $1
; 32R6-NEXT: muhu $2, $5, $4
; 32R6-NEXT: jr $ra
; 32R6-NEXT: addu $2, $2, $1
;
; DSP-LABEL: madd2:
; DSP: # %bb.0: # %entry
; DSP-NEXT: addiu $1, $zero, 0
; DSP-NEXT: mtlo $6, $ac0
; DSP-NEXT: mthi $1, $ac0
; DSP-NEXT: maddu $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: madd2:
; 64: # %bb.0: # %entry
; 64-NEXT: dmult $5, $4
; 64-NEXT: mflo $1
; 64-NEXT: jr $ra
; 64-NEXT: daddu $2, $1, $6
;
; 64R6-LABEL: madd2:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: dmul $1, $5, $4
; 64R6-NEXT: jr $ra
; 64R6-NEXT: daddu $2, $1, $6
;
; 16-LABEL: madd2:
; 16: # %bb.0: # %entry
; 16-NEXT: multu $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $4
; 16-NEXT: addu $3, $2, $6
; 16-NEXT: sltu $3, $2
; 16-NEXT: move $2, $24
; 16-NEXT: addu $2, $4, $2
; 16-NEXT: jrc $ra
entry:
%conv = zext i32 %a to i64
%conv2 = zext i32 %b to i64
%mul = mul nsw i64 %conv2, %conv
%conv4 = zext i32 %c to i64
%add = add nsw i64 %mul, %conv4
ret i64 %add
}
define i64 @madd3(i32 %a, i32 %b, i64 %c) nounwind readnone {
; 32-LABEL: madd3:
; 32: # %bb.0: # %entry
; 32-NEXT: mtlo $7
; 32-NEXT: mthi $6
; 32-NEXT: madd $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: madd3:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $5, $4
; 32R6-NEXT: addu $3, $1, $7
; 32R6-NEXT: sltu $1, $3, $1
; 32R6-NEXT: muh $2, $5, $4
; 32R6-NEXT: addu $2, $2, $6
; 32R6-NEXT: jr $ra
; 32R6-NEXT: addu $2, $2, $1
;
; DSP-LABEL: madd3:
; DSP: # %bb.0: # %entry
; DSP-NEXT: mtlo $7, $ac0
; DSP-NEXT: mthi $6, $ac0
; DSP-NEXT: madd $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: madd3:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $4, 0
; 64-NEXT: sll $2, $5, 0
; 64-NEXT: dmult $2, $1
; 64-NEXT: mflo $1
; 64-NEXT: jr $ra
; 64-NEXT: daddu $2, $1, $6
;
; 64R6-LABEL: madd3:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $4, 0
; 64R6-NEXT: sll $2, $5, 0
; 64R6-NEXT: dmul $1, $2, $1
; 64R6-NEXT: jr $ra
; 64R6-NEXT: daddu $2, $1, $6
;
; 16-LABEL: madd3:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $3
; 16-NEXT: addu $4, $3, $6
; 16-NEXT: addu $3, $2, $7
; 16-NEXT: sltu $3, $2
; 16-NEXT: move $2, $24
; 16-NEXT: addu $2, $4, $2
; 16-NEXT: jrc $ra
entry:
%conv = sext i32 %a to i64
%conv2 = sext i32 %b to i64
%mul = mul nsw i64 %conv2, %conv
%add = add nsw i64 %mul, %c
ret i64 %add
}
define i32 @madd4(i32 %a, i32 %b, i32 %c) {
; 32-LABEL: madd4:
; 32: # %bb.0: # %entry
; 32-NEXT: mul $1, $4, $5
; 32-NEXT: jr $ra
; 32-NEXT: addu $2, $6, $1
;
; 32R6-LABEL: madd4:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $4, $5
; 32R6-NEXT: jr $ra
; 32R6-NEXT: addu $2, $6, $1
;
; DSP-LABEL: madd4:
; DSP: # %bb.0: # %entry
; DSP-NEXT: mul $1, $4, $5
; DSP-NEXT: jr $ra
; DSP-NEXT: addu $2, $6, $1
;
; 64-LABEL: madd4:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $5, 0
; 64-NEXT: sll $2, $4, 0
; 64-NEXT: mul $1, $2, $1
; 64-NEXT: sll $2, $6, 0
; 64-NEXT: jr $ra
; 64-NEXT: addu $2, $2, $1
;
; 64R6-LABEL: madd4:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $5, 0
; 64R6-NEXT: sll $2, $4, 0
; 64R6-NEXT: mul $1, $2, $1
; 64R6-NEXT: sll $2, $6, 0
; 64R6-NEXT: jr $ra
; 64R6-NEXT: addu $2, $2, $1
;
; 16-LABEL: madd4:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $4, $5
; 16-NEXT: mflo $2
; 16-NEXT: addu $2, $6, $2
; 16-NEXT: jrc $ra
entry:
%mul = mul nsw i32 %a, %b
%add = add nsw i32 %c, %mul
ret i32 %add
}
define i64 @msub1(i32 %a, i32 %b, i32 %c) nounwind readnone {
; 32-LABEL: msub1:
; 32: # %bb.0: # %entry
; 32-NEXT: sra $1, $6, 31
; 32-NEXT: mtlo $6
; 32-NEXT: mthi $1
; 32-NEXT: msub $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: msub1:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $5, $4
; 32R6-NEXT: sltu $2, $6, $1
; 32R6-NEXT: muh $3, $5, $4
; 32R6-NEXT: sra $4, $6, 31
; 32R6-NEXT: subu $3, $4, $3
; 32R6-NEXT: subu $2, $3, $2
; 32R6-NEXT: jr $ra
; 32R6-NEXT: subu $3, $6, $1
;
; DSP-LABEL: msub1:
; DSP: # %bb.0: # %entry
; DSP-NEXT: sra $1, $6, 31
; DSP-NEXT: mtlo $6, $ac0
; DSP-NEXT: mthi $1, $ac0
; DSP-NEXT: msub $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: msub1:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $4, 0
; 64-NEXT: sll $2, $5, 0
; 64-NEXT: dmult $2, $1
; 64-NEXT: mflo $1
; 64-NEXT: sll $2, $6, 0
; 64-NEXT: jr $ra
; 64-NEXT: dsubu $2, $2, $1
;
; 64R6-LABEL: msub1:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $4, 0
; 64R6-NEXT: sll $2, $5, 0
; 64R6-NEXT: dmul $1, $2, $1
; 64R6-NEXT: sll $2, $6, 0
; 64R6-NEXT: jr $ra
; 64R6-NEXT: dsubu $2, $2, $1
;
; 16-LABEL: msub1:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $4
; 16-NEXT: subu $3, $6, $2
; 16-NEXT: sltu $6, $2
; 16-NEXT: move $2, $24
; 16-NEXT: sra $5, $6, 31
; 16-NEXT: subu $4, $5, $4
; 16-NEXT: subu $2, $4, $2
; 16-NEXT: jrc $ra
entry:
%conv = sext i32 %c to i64
%conv2 = sext i32 %a to i64
%conv4 = sext i32 %b to i64
%mul = mul nsw i64 %conv4, %conv2
%sub = sub nsw i64 %conv, %mul
ret i64 %sub
}
define i64 @msub2(i32 zeroext %a, i32 zeroext %b, i32 zeroext %c) nounwind readnone {
; 32-LABEL: msub2:
; 32: # %bb.0: # %entry
; 32-NEXT: addiu $1, $zero, 0
; 32-NEXT: mtlo $6
; 32-NEXT: mthi $1
; 32-NEXT: msubu $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: msub2:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: muhu $1, $5, $4
; 32R6-NEXT: mul $3, $5, $4
; 32R6-NEXT: sltu $2, $6, $3
; 32R6-NEXT: addu $1, $1, $2
; 32R6-NEXT: negu $2, $1
; 32R6-NEXT: jr $ra
; 32R6-NEXT: subu $3, $6, $3
;
; DSP-LABEL: msub2:
; DSP: # %bb.0: # %entry
; DSP-NEXT: addiu $1, $zero, 0
; DSP-NEXT: mtlo $6, $ac0
; DSP-NEXT: mthi $1, $ac0
; DSP-NEXT: msubu $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: msub2:
; 64: # %bb.0: # %entry
; 64-NEXT: dmult $5, $4
; 64-NEXT: mflo $1
; 64-NEXT: jr $ra
; 64-NEXT: dsubu $2, $6, $1
;
; 64R6-LABEL: msub2:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: dmul $1, $5, $4
; 64R6-NEXT: jr $ra
; 64R6-NEXT: dsubu $2, $6, $1
;
; 16-LABEL: msub2:
; 16: # %bb.0: # %entry
; 16-NEXT: multu $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $3
; 16-NEXT: sltu $6, $2
; 16-NEXT: move $4, $24
; 16-NEXT: addu $4, $3, $4
; 16-NEXT: subu $3, $6, $2
; 16-NEXT: neg $2, $4
; 16-NEXT: jrc $ra
entry:
%conv = zext i32 %c to i64
%conv2 = zext i32 %a to i64
%conv4 = zext i32 %b to i64
%mul = mul nsw i64 %conv4, %conv2
%sub = sub nsw i64 %conv, %mul
ret i64 %sub
}
define i64 @msub3(i32 %a, i32 %b, i64 %c) nounwind readnone {
; 32-LABEL: msub3:
; 32: # %bb.0: # %entry
; 32-NEXT: mtlo $7
; 32-NEXT: mthi $6
; 32-NEXT: msub $5, $4
; 32-NEXT: mfhi $2
; 32-NEXT: jr $ra
; 32-NEXT: mflo $3
;
; 32R6-LABEL: msub3:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $5, $4
; 32R6-NEXT: sltu $2, $7, $1
; 32R6-NEXT: muh $3, $5, $4
; 32R6-NEXT: subu $3, $6, $3
; 32R6-NEXT: subu $2, $3, $2
; 32R6-NEXT: jr $ra
; 32R6-NEXT: subu $3, $7, $1
;
; DSP-LABEL: msub3:
; DSP: # %bb.0: # %entry
; DSP-NEXT: mtlo $7, $ac0
; DSP-NEXT: mthi $6, $ac0
; DSP-NEXT: msub $ac0, $5, $4
; DSP-NEXT: mfhi $2, $ac0
; DSP-NEXT: jr $ra
; DSP-NEXT: mflo $3, $ac0
;
; 64-LABEL: msub3:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $4, 0
; 64-NEXT: sll $2, $5, 0
; 64-NEXT: dmult $2, $1
; 64-NEXT: mflo $1
; 64-NEXT: jr $ra
; 64-NEXT: dsubu $2, $6, $1
;
; 64R6-LABEL: msub3:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $4, 0
; 64R6-NEXT: sll $2, $5, 0
; 64R6-NEXT: dmul $1, $2, $1
; 64R6-NEXT: jr $ra
; 64R6-NEXT: dsubu $2, $6, $1
;
; 16-LABEL: msub3:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $5, $4
; 16-NEXT: mflo $2
; 16-NEXT: mfhi $4
; 16-NEXT: subu $3, $7, $2
; 16-NEXT: sltu $7, $2
; 16-NEXT: move $2, $24
; 16-NEXT: subu $4, $6, $4
; 16-NEXT: subu $2, $4, $2
; 16-NEXT: jrc $ra
entry:
%conv = sext i32 %a to i64
%conv3 = sext i32 %b to i64
%mul = mul nsw i64 %conv3, %conv
%sub = sub nsw i64 %c, %mul
ret i64 %sub
}
define i32 @msub4(i32 %a, i32 %b, i32 %c) {
; 32-LABEL: msub4:
; 32: # %bb.0: # %entry
; 32-NEXT: mul $1, $4, $5
; 32-NEXT: jr $ra
; 32-NEXT: subu $2, $6, $1
;
; 32R6-LABEL: msub4:
; 32R6: # %bb.0: # %entry
; 32R6-NEXT: mul $1, $4, $5
; 32R6-NEXT: jr $ra
; 32R6-NEXT: subu $2, $6, $1
;
; DSP-LABEL: msub4:
; DSP: # %bb.0: # %entry
; DSP-NEXT: mul $1, $4, $5
; DSP-NEXT: jr $ra
; DSP-NEXT: subu $2, $6, $1
;
; 64-LABEL: msub4:
; 64: # %bb.0: # %entry
; 64-NEXT: sll $1, $5, 0
; 64-NEXT: sll $2, $4, 0
; 64-NEXT: mul $1, $2, $1
; 64-NEXT: sll $2, $6, 0
; 64-NEXT: jr $ra
; 64-NEXT: subu $2, $2, $1
;
; 64R6-LABEL: msub4:
; 64R6: # %bb.0: # %entry
; 64R6-NEXT: sll $1, $5, 0
; 64R6-NEXT: sll $2, $4, 0
; 64R6-NEXT: mul $1, $2, $1
; 64R6-NEXT: sll $2, $6, 0
; 64R6-NEXT: jr $ra
; 64R6-NEXT: subu $2, $2, $1
;
; 16-LABEL: msub4:
; 16: # %bb.0: # %entry
; 16-NEXT: mult $4, $5
; 16-NEXT: mflo $2
; 16-NEXT: subu $2, $6, $2
; 16-NEXT: jrc $ra
entry:
%mul = mul nsw i32 %a, %b
%sub = sub nsw i32 %c, %mul
ret i32 %sub
}
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