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; RUN: llc < %s -march=mips -mcpu=mips2 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP32
; RUN: llc < %s -march=mips -mcpu=mips32 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP32
; RUN: llc < %s -march=mips -mcpu=mips32r2 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
; RUN: llc < %s -march=mips -mcpu=mips32r6 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP32
; RUN: llc < %s -march=mips64 -mcpu=mips3 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
; RUN: llc < %s -march=mips64 -mcpu=mips4 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
; RUN: llc < %s -march=mips64 -mcpu=mips64 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=NOT-R2-R6 -check-prefix=GP64
; RUN: llc < %s -march=mips64 -mcpu=mips64r2 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
; RUN: llc < %s -march=mips64 -mcpu=mips64r6 | FileCheck %s \
; RUN: -check-prefix=ALL -check-prefix=R2-R6 -check-prefix=GP64
define signext i1 @sub_i1(i1 signext %a, i1 signext %b) {
entry:
; ALL-LABEL: sub_i1:
; ALL: subu $[[T0:[0-9]+]], $4, $5
; ALL: sll $[[T0]], $[[T0]], 31
; ALL: sra $2, $[[T0]], 31
%r = sub i1 %a, %b
ret i1 %r
}
define signext i8 @sub_i8(i8 signext %a, i8 signext %b) {
entry:
; ALL-LABEL: sub_i8:
; NOT-R2-R6: subu $[[T0:[0-9]+]], $4, $5
; NOT-R2-R6: sll $[[T0]], $[[T0]], 24
; NOT-R2-R6: sra $2, $[[T0]], 24
; R2-R6: subu $[[T0:[0-9]+]], $4, $5
; R2-R6: seb $2, $[[T0:[0-9]+]]
%r = sub i8 %a, %b
ret i8 %r
}
define signext i16 @sub_i16(i16 signext %a, i16 signext %b) {
entry:
; ALL-LABEL: sub_i16:
; NOT-R2-R6: subu $[[T0:[0-9]+]], $4, $5
; NOT-R2-R6: sll $[[T0]], $[[T0]], 16
; NOT-R2-R6: sra $2, $[[T0]], 16
; R2-R6: subu $[[T0:[0-9]+]], $4, $5
; R2-R6: seh $2, $[[T0:[0-9]+]]
%r = sub i16 %a, %b
ret i16 %r
}
define signext i32 @sub_i32(i32 signext %a, i32 signext %b) {
entry:
; ALL-LABEL: sub_i32:
; ALL: subu $2, $4, $5
%r = sub i32 %a, %b
ret i32 %r
}
define signext i64 @sub_i64(i64 signext %a, i64 signext %b) {
entry:
; ALL-LABEL: sub_i64:
; GP32: subu $3, $5, $7
; GP32: sltu $[[T0:[0-9]+]], $5, $7
; GP32: addu $[[T1:[0-9]+]], $[[T0]], $6
; GP32: subu $2, $4, $[[T1]]
; GP64: dsubu $2, $4, $5
%r = sub i64 %a, %b
ret i64 %r
}
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