19 lines
577 B
LLVM
19 lines
577 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=x86_64-- -combiner-shrink-load-replace-store-with-store=false | FileCheck %s
|
|
|
|
define void @shrink(i16* %ptr) {
|
|
; CHECK-LABEL: shrink:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: movzbl (%rdi), %eax
|
|
; CHECK-NEXT: orl $25600, %eax # imm = 0x6400
|
|
; CHECK-NEXT: movw %ax, (%rdi)
|
|
; CHECK-NEXT: retq
|
|
entry:
|
|
%val = load i16, i16* %ptr
|
|
%masked_val = and i16 %val, 255
|
|
%replaced_val = or i16 %masked_val, 25600
|
|
store i16 %replaced_val, i16* %ptr
|
|
ret void
|
|
}
|
|
|