File: t2abs-killflags.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (23 lines) | stat: -rw-r--r-- 704 bytes parent folder | download | duplicates (33)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s

target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
target triple = "thumbv7s-unknown-unknown"

; Test that we don't crash the machine verifier when expanding t2ABS.
; It was applying the kill flag to its source, even if the original t2ABS didn't
; kill the operand prior to pseudo expansion.

; Function Attrs: noreturn
declare void @foo(i32, i32) #0

; CHECK-LABEL: @test
; CHECK: rsbmi
define void @test(i32 %arg) {
  %cmp58 = icmp slt i32 %arg, 0
  %sub62 = sub nsw i32 0, %arg
  %l.1 = select i1 %cmp58, i32 %sub62, i32 %arg
  call void @foo(i32 %l.1, i32 %arg) #0
  unreachable
}

attributes #0 = { noreturn }