File: phi.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 (26 lines) | stat: -rw-r--r-- 921 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
 
; RUN: opt < %s -passes=dfsan -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define {i32, i32} @test({i32, i32} %a, i1 %c) {
  ; CHECK: %[[#AL:]] = load { i8, i8 }, ptr @__dfsan_arg_tls, align [[ALIGN:2]]
  ; CHECK: %[[#AL0:]] = insertvalue { i8, i8 } %[[#AL]], i8 0, 0
  ; CHECK: %[[#AL1:]] = insertvalue { i8, i8 } %[[#AL]], i8 0, 1
  ; CHECK: %[[#PL:]] = phi { i8, i8 } [ %[[#AL0]], %T ], [ %[[#AL1]], %F ]
  ; CHECK: store { i8, i8 } %[[#PL]], ptr @__dfsan_retval_tls, align [[ALIGN]]

entry:
  br i1 %c, label %T, label %F
  
T:
  %at = insertvalue {i32, i32} %a, i32 1, 0
  br label %done
  
F:
  %af = insertvalue {i32, i32} %a, i32 1, 1
  br label %done
  
done:
  %b = phi {i32, i32} [%at, %T], [%af, %F]
  ret {i32, i32} %b  
}