File: reduce-operands-skip-repeated-phi-input.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 (32 lines) | stat: -rw-r--r-- 974 bytes parent folder | download | duplicates (12) 
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
32
 
; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=operands-skip --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
; RUN: FileCheck --check-prefixes=CHECK %s < %t

; Make sure if we're replacing the value in a phi, it's replaced for
; all repeats of the same incoming block.

; CHECK-INTERESTINGNESS: switch
; CHECK-INTERESTINGNESS: phi
; CHECK-INTERESTINGNESS-SAME: [ %gep1, %bb1 ]

; CHECK: %phi.ptr = phi ptr [ %arg1, %entry ], [ %arg1, %entry ], [ %gep1, %bb1 ]
define void @foo(i32 %arg0, ptr %arg1, ptr %arg2) {
entry:
  %gep0 = getelementptr i32, ptr %arg1, i32 10
  %gep1 = getelementptr i32, ptr %arg2, i32 12
  switch i32 %arg0, label %ret [
    i32 3, label %bb1
    i32 4, label %bb2
    i32 12, label %bb2
  ]

bb1:
  br label %bb2

bb2:
  %phi.ptr = phi ptr [ %gep0, %entry ], [ %gep0, %entry ], [ %gep1, %bb1 ]
  store volatile i32 0, ptr %phi.ptr
  br label %ret

ret:
  ret void
}