llvm/test/CodeGen/X86/scalar-ext-logic.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s --check-prefixes=X64

; Fold and(sextinreg(v0,i5),sextinreg(v1,i5)) -> sextinreg(and(v0,v1),i5)
define i32 @sextinreg_i32(ptr %p0, ptr %p1) {
; X86-LABEL: sextinreg_i32:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzbl (%ecx), %ecx
; X86-NEXT:    movzbl (%eax), %eax
; X86-NEXT:    andl %ecx, %eax
; X86-NEXT:    shll $27, %eax
; X86-NEXT:    sarl $27, %eax
; X86-NEXT:    retl
;
; X64-LABEL: sextinreg_i32:
; X64:       # %bb.0:
; X64-NEXT:    movzbl (%rdi), %ecx
; X64-NEXT:    movzbl (%rsi), %eax
; X64-NEXT:    andl %ecx, %eax
; X64-NEXT:    shll $27, %eax
; X64-NEXT:    sarl $27, %eax
; X64-NEXT:    retq
  %v0 = load i8, ptr %p0, align 1
  %v1 = load i8, ptr %p1, align 1
  %x0 = zext i8 %v0 to i32
  %x1 = zext i8 %v1 to i32
  %l0 = shl i32 %x0, 27
  %l1 = shl i32 %x1, 27
  %a0 = ashr exact i32 %l0, 27
  %a1 = ashr exact i32 %l1, 27
  %and = and i32 %a0, %a1
  ret i32 %and
}

; MISMATCH and(sextinreg(v0,i2),sextinreg(v1,i5)) != sextinreg(and(v0,v1),i2)
define i32 @sextinreg_i32_mismatch(ptr %p0, ptr %p1) {
; X86-LABEL: sextinreg_i32_mismatch:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movzbl (%ecx), %ecx
; X86-NEXT:    movzbl (%eax), %eax
; X86-NEXT:    shll $30, %ecx
; X86-NEXT:    sarl $30, %ecx
; X86-NEXT:    shll $27, %eax
; X86-NEXT:    sarl $27, %eax
; X86-NEXT:    andl %ecx, %eax
; X86-NEXT:    retl
;
; X64-LABEL: sextinreg_i32_mismatch:
; X64:       # %bb.0:
; X64-NEXT:    movzbl (%rdi), %ecx
; X64-NEXT:    movzbl (%rsi), %eax
; X64-NEXT:    shll $30, %ecx
; X64-NEXT:    sarl $30, %ecx
; X64-NEXT:    shll $27, %eax
; X64-NEXT:    sarl $27, %eax
; X64-NEXT:    andl %ecx, %eax
; X64-NEXT:    retq
  %v0 = load i8, ptr %p0, align 1
  %v1 = load i8, ptr %p1, align 1
  %x0 = zext i8 %v0 to i32
  %x1 = zext i8 %v1 to i32
  %l0 = shl i32 %x0, 30
  %l1 = shl i32 %x1, 27
  %a0 = ashr exact i32 %l0, 30
  %a1 = ashr exact i32 %l1, 27
  %and = and i32 %a0, %a1
  ret i32 %and
}