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