|  | ; RUN: llc  < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=MIPS32 | 
|  | ; RUN: llc  < %s -march=mips64el -mcpu=mips64r2 | FileCheck %s -check-prefix=MIPS64 | 
|  | ; RUN: llc  < %s -mtriple=mipsel-linux-gnu -march=mipsel -mcpu=mips32r2 -mattr=+mips16 | FileCheck %s -check-prefix=MIPS16 | 
|  |  | 
|  | define i32 @bswap32(i32 signext %x) nounwind readnone { | 
|  | entry: | 
|  | ; MIPS32-LABEL: bswap32: | 
|  | ; MIPS32: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  |  | 
|  | ; MIPS64-LABEL: bswap32: | 
|  | ; MIPS64: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  |  | 
|  | ; MIPS16-LABEL: bswap32: | 
|  | ; MIPS16-DAG: srl $[[R0:[0-9]+]], $4, 8 | 
|  | ; MIPS16-DAG: srl $[[R1:[0-9]+]], $4, 24 | 
|  | ; MIPS16-DAG: sll $[[R2:[0-9]+]], $4, 8 | 
|  | ; MIPS16-DAG: sll $[[R3:[0-9]+]], $4, 24 | 
|  | ; MIPS16-DAG: li  $[[R4:[0-9]+]], 65280 | 
|  | ; MIPS16-DAG: and $[[R4]], $[[R0]] | 
|  | ; MIPS16-DAG: or  $[[R1]], $[[R4]] | 
|  | ; MIPS16-DAG: lw  $[[R7:[0-9]+]], $CPI | 
|  | ; MIPS16-DAG: and $[[R7]], $[[R2]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R7]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R1]] | 
|  |  | 
|  | %or.3 = call i32 @llvm.bswap.i32(i32 %x) | 
|  | ret i32 %or.3 | 
|  | } | 
|  |  | 
|  | define i64 @bswap64(i64 signext %x) nounwind readnone { | 
|  | entry: | 
|  | ; MIPS32-LABEL: bswap64: | 
|  | ; MIPS32: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS32: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  |  | 
|  | ; MIPS64-LABEL: bswap64: | 
|  | ; MIPS64: dsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64: dshd ${{[0-9]+}}, $[[R0]] | 
|  |  | 
|  | ; MIPS16-LABEL: bswap64: | 
|  | ; MIPS16-DAG: srl $[[R0:[0-9]+]], $5, 8 | 
|  | ; MIPS16-DAG: srl $[[R1:[0-9]+]], $5, 24 | 
|  | ; MIPS16-DAG: sll $[[R2:[0-9]+]], $5, 8 | 
|  | ; MIPS16-DAG: sll $[[R3:[0-9]+]], $5, 24 | 
|  | ; MIPS16-DAG: li  $[[R4:[0-9]+]], 65280 | 
|  | ; MIPS16-DAG: and $[[R0]], $[[R4]] | 
|  | ; MIPS16-DAG: or  $[[R1]], $[[R0]] | 
|  | ; MIPS16-DAG: lw  $[[R7:[0-9]+]], 1f | 
|  | ; MIPS16-DAG: and $[[R2]], $[[R7]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R2]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R1]] | 
|  | ; MIPS16-DAG: srl $[[R0:[0-9]+]], $4, 8 | 
|  | ; MIPS16-DAG: srl $[[R1:[0-9]+]], $4, 24 | 
|  | ; MIPS16-DAG: sll $[[R2:[0-9]+]], $4, 8 | 
|  | ; MIPS16-DAG: sll $[[R3:[0-9]+]], $4, 24 | 
|  | ; MIPS16-DAG: li  $[[R4:[0-9]+]], 65280 | 
|  | ; MIPS16-DAG: and $[[R0]], $[[R4]] | 
|  | ; MIPS16-DAG: or  $[[R1]], $[[R0]] | 
|  | ; MIPS16-DAG: lw  $[[R7:[0-9]+]], 1f | 
|  | ; MIPS16-DAG: and $[[R2]], $[[R7]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R2]] | 
|  | ; MIPS16-DAG: or  $[[R3]], $[[R1]] | 
|  |  | 
|  | %or.7 = call i64 @llvm.bswap.i64(i64 %x) | 
|  | ret i64 %or.7 | 
|  | } | 
|  |  | 
|  | define <4 x i32> @bswapv4i32(<4 x i32> %x) nounwind readnone { | 
|  | entry: | 
|  | ; MIPS32-LABEL: bswapv4i32: | 
|  | ; MIPS32-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS32-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS32-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS32-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS32-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  |  | 
|  | ; MIPS64-LABEL: bswapv4i32: | 
|  | ; MIPS64-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS64-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS64-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  | ; MIPS64-DAG: wsbh $[[R0:[0-9]+]] | 
|  | ; MIPS64-DAG: rotr ${{[0-9]+}}, $[[R0]], 16 | 
|  |  | 
|  | ; Don't bother with a MIPS16 version. It's just bswap32 repeated four times and | 
|  | ; would be very long | 
|  |  | 
|  | %ret = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %x) | 
|  | ret <4 x i32> %ret | 
|  | } | 
|  |  | 
|  | declare i32 @llvm.bswap.i32(i32) nounwind readnone | 
|  |  | 
|  | declare i64 @llvm.bswap.i64(i64) nounwind readnone | 
|  |  | 
|  | declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>) nounwind readnone |