From b55a77d2229d5e2d355a14a537fd6c98607021de Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@sifive.com>
Date: Sat, 12 Mar 2022 16:13:54 -0800
Subject: [PATCH] [RISCV] Add Zbp command lines to bswap-bitreverse.ll. NFC

---
 llvm/test/CodeGen/RISCV/bswap-bitreverse.ll | 140 ++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)

diff --git a/llvm/test/CodeGen/RISCV/bswap-bitreverse.ll b/llvm/test/CodeGen/RISCV/bswap-bitreverse.ll
index d442602..489e117 100644
--- a/llvm/test/CodeGen/RISCV/bswap-bitreverse.ll
+++ b/llvm/test/CodeGen/RISCV/bswap-bitreverse.ll
@@ -11,6 +11,10 @@
 ; RUN:   | FileCheck %s -check-prefixes=RV32ZB,RV32ZBKB
 ; RUN: llc -mtriple=riscv64 -mattr=+zbkb -verify-machineinstrs < %s \
 ; RUN:   | FileCheck %s -check-prefixes=RV64ZB,RV64ZBKB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefixes=RV32ZBP
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefixes=RV64ZBP
 
 declare i16 @llvm.bswap.i16(i16)
 declare i32 @llvm.bswap.i32(i32)
@@ -48,6 +52,16 @@ define i16 @test_bswap_i16(i16 %a) nounwind {
 ; RV64ZB-NEXT:    rev8 a0, a0
 ; RV64ZB-NEXT:    srli a0, a0, 48
 ; RV64ZB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_i16:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev8.h a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_i16:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev8.h a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i16 @llvm.bswap.i16(i16 %a)
   ret i16 %tmp
 }
@@ -95,6 +109,16 @@ define i32 @test_bswap_i32(i32 %a) nounwind {
 ; RV64ZB-NEXT:    rev8 a0, a0
 ; RV64ZB-NEXT:    srli a0, a0, 32
 ; RV64ZB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_i32:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev8 a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_i32:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev8.w a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i32 @llvm.bswap.i32(i32 %a)
   ret i32 %tmp
 }
@@ -169,6 +193,18 @@ define i64 @test_bswap_i64(i64 %a) nounwind {
 ; RV64ZB:       # %bb.0:
 ; RV64ZB-NEXT:    rev8 a0, a0
 ; RV64ZB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_i64:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev8 a2, a1
+; RV32ZBP-NEXT:    rev8 a1, a0
+; RV32ZBP-NEXT:    mv a0, a2
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_i64:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev8 a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i64 @llvm.bswap.i64(i64 %a)
   ret i64 %tmp
 }
@@ -263,6 +299,16 @@ define i8 @test_bitreverse_i8(i8 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 56
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_i8:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_i8:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i8 @llvm.bitreverse.i8(i8 %a)
   ret i8 %tmp
 }
@@ -391,6 +437,16 @@ define i16 @test_bitreverse_i16(i16 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 48
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_i16:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.h a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_i16:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.h a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i16 @llvm.bitreverse.i16(i16 %a)
   ret i16 %tmp
 }
@@ -537,6 +593,16 @@ define i32 @test_bitreverse_i32(i32 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 32
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_i32:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_i32:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.w a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i32 @llvm.bitreverse.i32(i32 %a)
   ret i32 %tmp
 }
@@ -740,6 +806,18 @@ define i64 @test_bitreverse_i64(i64 %a) nounwind {
 ; RV64ZBKB-NEXT:    rev8 a0, a0
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_i64:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev a2, a1
+; RV32ZBP-NEXT:    rev a1, a0
+; RV32ZBP-NEXT:    mv a0, a2
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_i64:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i64 @llvm.bitreverse.i64(i64 %a)
   ret i64 %tmp
 }
@@ -863,6 +941,16 @@ define i16 @test_bswap_bitreverse_i16(i16 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 48
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_bitreverse_i16:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_bitreverse_i16:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i16 @llvm.bswap.i16(i16 %a)
   %tmp2 = call i16 @llvm.bitreverse.i16(i16 %tmp)
   ret i16 %tmp2
@@ -983,6 +1071,16 @@ define i32 @test_bswap_bitreverse_i32(i32 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 32
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_bitreverse_i32:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_bitreverse_i32:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i32 @llvm.bswap.i32(i32 %a)
   %tmp2 = call i32 @llvm.bitreverse.i32(i32 %tmp)
   ret i32 %tmp2
@@ -1129,6 +1227,17 @@ define i64 @test_bswap_bitreverse_i64(i64 %a) nounwind {
 ; RV64ZBKB:       # %bb.0:
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bswap_bitreverse_i64:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    rev.b a1, a1
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bswap_bitreverse_i64:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i64 @llvm.bswap.i64(i64 %a)
   %tmp2 = call i64 @llvm.bitreverse.i64(i64 %tmp)
   ret i64 %tmp2
@@ -1253,6 +1362,16 @@ define i16 @test_bitreverse_bswap_i16(i16 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 48
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_bswap_i16:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_bswap_i16:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i16 @llvm.bitreverse.i16(i16 %a)
   %tmp2 = call i16 @llvm.bswap.i16(i16 %tmp)
   ret i16 %tmp2
@@ -1373,6 +1492,16 @@ define i32 @test_bitreverse_bswap_i32(i32 %a) nounwind {
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    srli a0, a0, 32
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_bswap_i32:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_bswap_i32:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i32 @llvm.bitreverse.i32(i32 %a)
   %tmp2 = call i32 @llvm.bswap.i32(i32 %tmp)
   ret i32 %tmp2
@@ -1519,6 +1648,17 @@ define i64 @test_bitreverse_bswap_i64(i64 %a) nounwind {
 ; RV64ZBKB:       # %bb.0:
 ; RV64ZBKB-NEXT:    brev8 a0, a0
 ; RV64ZBKB-NEXT:    ret
+;
+; RV32ZBP-LABEL: test_bitreverse_bswap_i64:
+; RV32ZBP:       # %bb.0:
+; RV32ZBP-NEXT:    rev.b a0, a0
+; RV32ZBP-NEXT:    rev.b a1, a1
+; RV32ZBP-NEXT:    ret
+;
+; RV64ZBP-LABEL: test_bitreverse_bswap_i64:
+; RV64ZBP:       # %bb.0:
+; RV64ZBP-NEXT:    rev.b a0, a0
+; RV64ZBP-NEXT:    ret
   %tmp = call i64 @llvm.bitreverse.i64(i64 %a)
   %tmp2 = call i64 @llvm.bswap.i64(i64 %tmp)
   ret i64 %tmp2
-- 
2.7.4