File: callbr.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (25 lines) | stat: -rw-r--r-- 704 bytes parent folder | download | duplicates (2) 
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
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=reassociate < %s | FileCheck %s

define i32 @test(i1 %b) {
; CHECK-LABEL: @test(
; CHECK-NEXT:    [[RES:%.*]] = callbr i32 asm "", "=r,!i"()
; CHECK-NEXT:    to label [[NORMAL:%.*]] [label %abnormal]
; CHECK:       normal:
; CHECK-NEXT:    [[FACTOR:%.*]] = mul i32 [[RES]], -2
; CHECK-NEXT:    [[SUB2:%.*]] = add i32 [[FACTOR]], 5
; CHECK-NEXT:    ret i32 [[SUB2]]
; CHECK:       abnormal:
; CHECK-NEXT:    ret i32 0
;
  %res = callbr i32 asm "", "=r,!i"()
  to label %normal [label %abnormal]

normal:
  %sub1 = sub nsw i32 5, %res
  %sub2 = sub nsw i32 %sub1, %res
  ret i32 %sub2

abnormal:
  ret i32 0
}