File: 2009-03-16-PHIElimInLPad.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 (29 lines) | stat: -rw-r--r-- 727 bytes parent folder | download | duplicates (13) 
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
 
; RUN: llc < %s -mtriple=i686-linux -asm-verbose | FileCheck %s
; Check that register copies in the landing pad come after the EH_LABEL

declare i32 @f()

define i32 @phi(i32 %x) personality ptr @__gxx_personality_v0 {
entry:
	%a = invoke i32 @f()
			to label %cont unwind label %lpad		; <i32> [#uses=1]

cont:		; preds = %entry
	%b = invoke i32 @f()
			to label %cont2 unwind label %lpad		; <i32> [#uses=1]

cont2:		; preds = %cont
	ret i32 %b

lpad:		; preds = %cont, %entry
	%v = phi i32 [ %x, %entry ], [ %a, %cont ]		; <i32> [#uses=1]
        %exn = landingpad {ptr, i32}
                 cleanup
	ret i32 %v
}

; CHECK: lpad
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: Ltmp

declare i32 @__gxx_personality_v0(...)