File: 2009-03-16-PHIElimInLPad.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,696 kB
  • sloc: cpp: 7,438,781; ansic: 1,393,871; asm: 1,012,926; python: 241,771; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 8,596; ml: 5,082; perl: 4,730; makefile: 3,591; awk: 3,523; javascript: 2,251; xml: 892; fortran: 672
file content (29 lines) | stat: -rw-r--r-- 727 bytes parent folder | download | duplicates (19) 
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(...)