File: constantpool-promote-ldrh.ll

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llvm-toolchain-19 1%3A19.1.7-3~deb12u1
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; RUN: llc < %s -O0 -fast-isel=false -arm-promote-constant | FileCheck %s
; RUN: llc < %s -O0 -fast-isel=false -filetype=obj -arm-promote-constant
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv6m-arm-linux-gnueabi"

@fn1.a = private unnamed_addr global [4 x i16] [i16 6, i16 0, i16 0, i16 0], align 2

; We must not try and emit this bad instruction: "ldrh r1, .LCPI0_0"
; CHECK-LABEL: fn1:
; CHECK: ldr [[base:r[0-9]+]], .LCPI0_0
; CHECK-NOT: ldrh {{r[0-9]+}}, .LCPI0_0
; CHECK: ldrh r{{[0-9]+}}, [[[base]]]
define hidden i32 @fn1() #0 {
entry:
  call void @llvm.memcpy.p0.p0.i32(ptr align 2 undef, ptr align 2 @fn1.a, i32 8, i1 false)
  ret i32 undef
}

; Function Attrs: argmemonly nounwind
declare void @llvm.memcpy.p0.p0.i32(ptr nocapture writeonly, ptr nocapture readonly, i32, i1)
attributes #0 = { "target-features"="+strict-align" }