93 lines
1.9 KiB
LLVM
93 lines
1.9 KiB
LLVM
; RUN: llc < %s -march=avr | FileCheck %s
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define i8 @sub8_reg_reg(i8 %a, i8 %b) {
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; CHECK-LABEL: sub8_reg_reg:
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; CHECK: sub r24, r22
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%result = sub i8 %a, %b
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ret i8 %result
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}
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define i8 @sub8_reg_imm(i8 %a) {
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; CHECK-LABEL: sub8_reg_imm:
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; CHECK: subi r24, 5
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%result = sub i8 %a, 5
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ret i8 %result
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}
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define i8 @sub8_reg_decrement(i8 %a) {
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; CHECK-LABEL: sub8_reg_decrement:
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; CHECK: dec r24
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%result = sub i8 %a, 1
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ret i8 %result
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}
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define i16 @sub16_reg_reg(i16 %a, i16 %b) {
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; CHECK-LABEL: sub16_reg_reg:
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; CHECK: sub r24, r22
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; CHECK: sbc r25, r23
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%result = sub i16 %a, %b
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ret i16 %result
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}
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define i16 @sub16_reg_imm(i16 %a) {
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; CHECK-LABEL: sub16_reg_imm:
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; CHECK: sbiw r24, 63
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%result = sub i16 %a, 63
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ret i16 %result
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}
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define i16 @sub16_reg_imm_subi(i16 %a) {
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; CHECK-LABEL: sub16_reg_imm_subi:
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; CHECK: subi r24, 210
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; CHECK: sbci r25, 4
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%result = sub i16 %a, 1234
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ret i16 %result
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}
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define i32 @sub32_reg_reg(i32 %a, i32 %b) {
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; CHECK-LABEL: sub32_reg_reg:
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; CHECK: sub r22, r18
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; CHECK: sbc r23, r19
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; CHECK: sbc r24, r20
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; CHECK: sbc r25, r21
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%result = sub i32 %a, %b
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ret i32 %result
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}
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define i32 @sub32_reg_imm(i32 %a) {
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; CHECK-LABEL: sub32_reg_imm:
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; CHECK: subi r22, 21
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; CHECK: sbci r23, 205
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; CHECK: sbci r24, 91
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; CHECK: sbci r25, 7
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%result = sub i32 %a, 123456789
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ret i32 %result
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}
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define i64 @sub64_reg_reg(i64 %a, i64 %b) {
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; CHECK-LABEL: sub64_reg_reg:
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; CHECK: sub r18, r10
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; CHECK: sbc r20, r12
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; CHECK: sbc r21, r13
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; CHECK: sbc r22, r14
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; CHECK: sbc r23, r15
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; CHECK: sbc r24, r16
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; CHECK: sbc r25, r17
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%result = sub i64 %a, %b
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ret i64 %result
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}
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define i64 @sub64_reg_imm(i64 %a) {
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; CHECK-LABEL: sub64_reg_imm:
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; CHECK: subi r18, 204
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; CHECK: sbci r19, 204
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; CHECK: sbci r20, 104
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; CHECK: sbci r21, 37
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; CHECK: sbci r22, 25
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; CHECK: sbci r23, 22
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; CHECK: sbci r24, 236
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; CHECK: sbci r25, 190
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%result = sub i64 %a, 13757395258967641292
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ret i64 %result
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}
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