File: fp16-frame-lowering.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (22 lines) | stat: -rw-r--r-- 789 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: llc < %s -mtriple armv8a--none-eabi -mattr=+fullfp16             | FileCheck %s
; RUN: llc < %s -mtriple armv8a--none-eabi -mattr=+fullfp16,+thumb-mode | FileCheck %s

; Check that frame lowering for the fp16 instructions works correctly with
; negative offsets (which happens when using the frame pointer).

define void @foo(i32 %count) {
entry:
  %half_alloca = alloca half, align 2
; CHECK: vstr.16 {{s[0-9]+}}, [{{r[0-9]+}}, #-10]
  store half 0.0, ptr %half_alloca
  call void @bar(ptr %half_alloca)

  ; A variable-sized alloca to force the above store to use the frame pointer
  ; instead of the stack pointer, and so need a negative offset.
  %var_alloca = alloca i32, i32 %count
  call void @baz(ptr %var_alloca)
  ret void
}

declare void @bar(ptr)
declare void @baz(ptr)