File: phi.ll

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (25 lines) | stat: -rw-r--r-- 578 bytes parent folder | download | duplicates (6)
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
; RUN: llc -mtriple=arm-eabi -mattr=+v4t %s -o - | FileCheck %s
; RUN: llc -mtriple=arm-eabi -mattr=+v4t -addr-sink-using-gep=1 %s -o - | FileCheck %s

; <rdar://problem/8686347>

define i32 @test1(i1 %a, i32* %b) {
; CHECK: test1
entry:
  br i1 %a, label %lblock, label %rblock

lblock:
  %lbranch = getelementptr i32, i32* %b, i32 1
  br label %end

rblock:
  %rbranch = getelementptr i32, i32* %b, i32 1
  br label %end
  
end:
; CHECK: ldr	r0, [r1, #4]
  %gep = phi i32* [%lbranch, %lblock], [%rbranch, %rblock]
  %r = load i32, i32* %gep
; CHECK-NEXT: bx	lr
  ret i32 %r
}