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; 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)
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