1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=i686 | FileCheck %s --check-prefix=X86 3; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 4 5; Combine BSWAP (lowered to rolw 8) with a second rotate. 6; This test checks for combining rotates with inconsistent constant value types. 7 8define i16 @combine_bswap_rotate(i16 %a0) { 9; X86-LABEL: combine_bswap_rotate: 10; X86: # %bb.0: 11; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax 12; X86-NEXT: rolw $9, %ax 13; X86-NEXT: retl 14; 15; X64-LABEL: combine_bswap_rotate: 16; X64: # %bb.0: 17; X64-NEXT: movl %edi, %eax 18; X64-NEXT: rolw $9, %ax 19; X64-NEXT: # kill: def $ax killed $ax killed $eax 20; X64-NEXT: retq 21 %1 = call i16 @llvm.bswap.i16(i16 %a0) 22 %2 = shl i16 %1, 1 23 %3 = lshr i16 %1, 15 24 %4 = or i16 %2, %3 25 ret i16 %4 26} 27 28declare i16 @llvm.bswap.i16(i16) 29