File: constp-rseq.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 (19 lines) | stat: -rw-r--r-- 409 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
; RUN: llc -march=hexagon < %s | FileCheck %s
; CHECK: cmp
; Make sure that the result is not a compile-time constant.

define i64 @foo(i32 %x) {
entry:
  %c = icmp slt i32 %x, 17
  br i1 %c, label %b1, label %b2
b1:
  br label %b2
b2:
  %p = phi i32 [ 1, %entry ], [ 0, %b1 ]
  %q = sub i32 %x, %x
  %y = zext i32 %q to i64
  %u = shl i64 %y, 32
  %v = zext i32 %p to i64
  %w = or i64 %u, %v
  ret i64 %w
}