File: apply-penalty-for-outputs.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (24 lines) | stat: -rw-r--r-- 581 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
; REQUIRES: asserts
; RUN: opt -hotcoldsplit -debug-only=hotcoldsplit -hotcoldsplit-threshold=2 -S < %s -o /dev/null 2>&1 | FileCheck %s

declare void @sink() cold

@g = global i32 0

define i32 @foo(i32 %arg) {
entry:
  br i1 undef, label %cold, label %exit

cold:
  ; CHECK: Applying penalty for splitting: 2
  ; CHECK-NEXT: Applying penalty for: 1 params
  ; CHECK-NEXT: Applying penalty for: 1 outputs/split phis
  ; CHECK-NEXT: penalty = 7
  %local = load i32, i32* @g
  call void @sink()
  br label %exit

exit:
  %p = phi i32 [ %local, %cold ], [ 0, %entry ]
  ret i32 %p
}