746c682c4a
According to the offical LoongArch reference manual, the 32-bit
LoongArch is divied into two variants: the Reduced version (LA32R) and
Standard version (LA32S). LA32S extends LA32R by adding additional
instructions, and the 64-bit version (LA64) fully includes the LA32S
instruction set.
This patch introduces a new target feature `32s` for the LoongArch
backend, enabling support for instructions specific to the LA32S
variant.
The LA32S exntension includes the following additional instructions:
- ALSL.W
- {AND,OR}N
- B{EQ,NE}Z
- BITREV.{4B,W}
- BSTR{INS,PICK}.W
- BYTEPICK.W
- CL{O,Z}.W
- CPUCFG
- CT{O,Z}.W
- EXT.W,{B,H}
- F{LD,ST}X.{D,S}
- MASK{EQ,NE}Z
- PC{ADDI,ALAU12I}
- REVB.2H
- ROTR{I},W
Additionally, LA32R defines three new instruction aliases:
- RDCNTID.W RJ => RDTIMEL.W ZERO, RJ
- RDCNTVH.W RD => RDTIMEH.W RD, ZERO
- RDCNTVL.W RD => RDTIMEL.W RD, ZERO
256 lines
6.1 KiB
LLVM
256 lines
6.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch32 -mattr=+32s,+d --verify-machineinstrs < %s \
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; RUN: | FileCheck %s --check-prefix=LA32
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; RUN: llc --mtriple=loongarch64 -mattr=+d --verify-machineinstrs < %s \
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; RUN: | FileCheck %s --check-prefix=LA64
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;; a=00112233 b=44556677
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;; expected 11223344
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define i32 @pick_i32_1(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_1:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 1
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_1:
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; LA64: # %bb.0:
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; LA64-NEXT: bstrpick.d $a1, $a1, 31, 24
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; LA64-NEXT: slli.d $a0, $a0, 8
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; LA64-NEXT: or $a0, $a1, $a0
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 24
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%2 = shl i32 %a, 8
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=00112233 b=44556677
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;; expected 11223344
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define signext i32 @pick_i32_1_sext(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_1_sext:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 1
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_1_sext:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.w $a0, $a1, $a0, 1
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 24
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%2 = shl i32 %a, 8
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=00112233 b=44556677
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;; expected 22334455
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define i32 @pick_i32_2(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_2:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_2:
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; LA64: # %bb.0:
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; LA64-NEXT: bstrpick.d $a1, $a1, 31, 16
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; LA64-NEXT: slli.d $a0, $a0, 16
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; LA64-NEXT: or $a0, $a1, $a0
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 16
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%2 = shl i32 %a, 16
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=00112233 b=44556677
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;; expected 22334455
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define signext i32 @pick_i32_2_sext(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_2_sext:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_2_sext:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.w $a0, $a1, $a0, 2
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 16
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%2 = shl i32 %a, 16
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=00112233 b=44556677
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;; expected 33445566
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define i32 @pick_i32_3(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_3:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 3
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_3:
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; LA64: # %bb.0:
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; LA64-NEXT: bstrpick.d $a1, $a1, 31, 8
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; LA64-NEXT: slli.d $a0, $a0, 24
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; LA64-NEXT: or $a0, $a1, $a0
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 8
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%2 = shl i32 %a, 24
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=00112233 b=44556677
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;; expected 33445566
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define signext i32 @pick_i32_3_sext(i32 %a, i32 %b) {
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; LA32-LABEL: pick_i32_3_sext:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a0, $a1, $a0, 3
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i32_3_sext:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.w $a0, $a1, $a0, 3
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; LA64-NEXT: ret
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%1 = lshr i32 %b, 8
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%2 = shl i32 %a, 24
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%3 = or i32 %1, %2
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ret i32 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 1122334455667788
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define i64 @pick_i64_1(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_1:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a1, $a0, $a1, 1
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; LA32-NEXT: bytepick.w $a0, $a3, $a0, 1
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_1:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 1
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 56
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%2 = shl i64 %a, 8
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 2233445566778899
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define i64 @pick_i64_2(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_2:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a1, $a0, $a1, 2
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; LA32-NEXT: bytepick.w $a0, $a3, $a0, 2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_2:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 2
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 48
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%2 = shl i64 %a, 16
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 33445566778899aa
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define i64 @pick_i64_3(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_3:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a1, $a0, $a1, 3
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; LA32-NEXT: bytepick.w $a0, $a3, $a0, 3
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_3:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 3
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 40
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%2 = shl i64 %a, 24
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 445566778899aabb
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define i64 @pick_i64_4(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_4:
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; LA32: # %bb.0:
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; LA32-NEXT: move $a1, $a0
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; LA32-NEXT: move $a0, $a3
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_4:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 4
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 32
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%2 = shl i64 %a, 32
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 5566778899aabbcc
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define i64 @pick_i64_5(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_5:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a2, $a2, $a3, 1
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; LA32-NEXT: bytepick.w $a1, $a3, $a0, 1
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; LA32-NEXT: move $a0, $a2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_5:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 5
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 24
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%2 = shl i64 %a,40
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 66778899aabbccdd
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define i64 @pick_i64_6(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_6:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a2, $a2, $a3, 2
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; LA32-NEXT: bytepick.w $a1, $a3, $a0, 2
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; LA32-NEXT: move $a0, $a2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_6:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 6
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 16
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%2 = shl i64 %a, 48
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%3 = or i64 %1, %2
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ret i64 %3
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}
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;; a=0011223344556677 b=8899aabbccddeeff
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;; expected 778899aabbccddee
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define i64 @pick_i64_7(i64 %a, i64 %b) {
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; LA32-LABEL: pick_i64_7:
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; LA32: # %bb.0:
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; LA32-NEXT: bytepick.w $a2, $a2, $a3, 3
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; LA32-NEXT: bytepick.w $a1, $a3, $a0, 3
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; LA32-NEXT: move $a0, $a2
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; LA32-NEXT: ret
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;
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; LA64-LABEL: pick_i64_7:
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; LA64: # %bb.0:
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; LA64-NEXT: bytepick.d $a0, $a1, $a0, 7
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; LA64-NEXT: ret
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%1 = lshr i64 %b, 8
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%2 = shl i64 %a, 56
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%3 = or i64 %1, %2
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ret i64 %3
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}
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