File: fold_bitcast_md_range.ll

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llvm-toolchain-21 1%3A21.1.7-1
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=x86_64-apple-macosx10.12.0 < %s | FileCheck %s

; Ensure that when a bitcast is folded into a load, range metadata is invalidated
; if it does not match the new type.

define i1 @fold_bitcast_range_metadata(ptr %valptr) {
; CHECK-LABEL: fold_bitcast_range_metadata:
; CHECK:       ## %bb.0: ## %start
; CHECK-NEXT:    movdqa (%rdi), %xmm0
; CHECK-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
; CHECK-NEXT:    pmovmskb %xmm0, %eax
; CHECK-NEXT:    cmpl $65535, %eax ## imm = 0xFFFF
; CHECK-NEXT:    sete %al
; CHECK-NEXT:    retq
start:
  %val = load i128, ptr %valptr, align 16, !range !0, !noundef !1
  %bool = icmp eq i128 %val, 1
  ret i1 %bool
}

!0 = !{i128 0, i128 3}
!1 = !{}