File: gpr-paired-spill-thumbinst.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (30 lines) | stat: -rw-r--r-- 1,331 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
; REQUIRES: asserts
; RUN: llc -mtriple=thumbv7-none-linux-gnueabi -debug -o /dev/null < %s 2>&1 | FileCheck %s

; This test makes sure spills of 64-bit pairs in Thumb mode actually
; generate thumb instructions. Previously we were inserting an ARM
; STMIA which happened to have the same encoding.

define void @foo(ptr %addr) {
  %val1 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val2 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val3 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val4 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val5 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val6 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)
  %val7 = tail call i64 asm sideeffect "ldrexd $0, ${0:H}, [r0]", "=&r,r"(ptr %addr)

  ; Make sure we are actually creating the Thumb versions of the spill
  ; instructions.
; CHECK: t2STRDi8
; CHECK: t2LDRDi8

  store volatile i64 %val1, ptr %addr
  store volatile i64 %val2, ptr %addr
  store volatile i64 %val3, ptr %addr
  store volatile i64 %val4, ptr %addr
  store volatile i64 %val5, ptr %addr
  store volatile i64 %val6, ptr %addr
  store volatile i64 %val7, ptr %addr
  ret void
}