File: inlineasm-X-allocation.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (20 lines) | stat: -rw-r--r-- 927 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; RUN: llc -mtriple=armv7-none-eabi -mattr=-neon,-vfp2sp %s -o - | FileCheck %s  -check-prefixes=COMMON,NOVFP
; RUN: llc -mtriple=armv7-none-eabi -mattr=+neon %s -float-abi=hard -o - | FileCheck %s -check-prefixes=COMMON,VFP

; The intent here is to test "X", which says that any operand whatsoever is allowed.
; Using this mechanism, we want to test toggling allocating GPR or SPR registers
; depending on whether the float registers are available. Thus, the mnemonic is
; totally irrelevant here, which is why we use FOO and also comment it out using "@"
; to avoid assembler errors.

; Note that this kind of IR can be generated by a function such as:
;  void f1(float f) {asm volatile ("@FOO $0, $0" : : "X" (f));}

define arm_aapcs_vfpcc void @func(float %f) {
; COMMON-LABEL: func
; NOVFP:        FOO r0, r0
; VFP:          FOO s0, s0
entry:
  call void asm sideeffect "@FOO $0, $0", "X" (float %f) nounwind
  ret void
}