File: pr32607.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (31 lines) | stat: -rw-r--r-- 1,035 bytes parent folder | download | duplicates (9) 
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
30
31
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=newgvn %s -S -o - | FileCheck %s
define hidden void @foo() {
; CHECK-LABEL: @foo(
; CHECK-NEXT:  top:
; CHECK-NEXT:    br label [[IF:%.*]]
; CHECK:       if:
; CHECK-NEXT:    br i1 false, label [[L50:%.*]], label [[IF]]
; CHECK:       L50:
; CHECK-NEXT:    store i8 poison, ptr null, align 1
; CHECK-NEXT:    ret void
;
top:
  %.promoted = load double, ptr undef, align 8
  br label %if

;; This is really a multi-valued phi, because the phi is defined by an expression of the phi.
;; This means that we can't propagate the value over the backedge, because we'll just cycle
;; through every value.

if:                                               ; preds = %if, %top
  %0 = phi double [ %1, %if ], [ %.promoted, %top ]
  %1 = fadd double %0, 1.0
  br i1 false, label %L50, label %if

L50:                                              ; preds = %if
  %.lcssa = phi double [ %1, %if ]
  store double %.lcssa, ptr undef, align 8
  ret void
}