File: phi-speculation2.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 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-- 642 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: opt < %s -passes=mergefunc -stats -disable-output 2>&1 | grep "functions merged"

define i32 @foo1(i32 %x) {
entry:
  %A = add i32 %x, 1
  %B = call i32 @foo1(i32 %A)
  br label %loop
loop:
  %C = phi i32 [%B, %entry], [%D, %loop]
  %D = add i32 %C, 2
  %E = icmp ugt i32 %D, 10000
  br i1 %E, label %loopexit, label %loop
loopexit:
  ret i32 %D
}

define i32 @foo2(i32 %x) {
entry:
  %0 = add i32 %x, 1
  %1 = call i32 @foo2(i32 %0)
  br label %loop
loop:
  %2 = phi i32 [%1, %entry], [%3, %loop]
  %3 = add i32 %2, 2
  %4 = icmp ugt i32 %3, 10000
  br i1 %4, label %loopexit, label %loop
loopexit:
  ret i32 %3
}