File: thread-prob-4.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (31 lines) | stat: -rw-r--r-- 714 bytes parent folder | download | duplicates (10) 
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
 
; RUN: opt -debug-only=branch-prob -passes="require<branch-prob>,jump-threading" -S %s 2>&1 | FileCheck %s
; RUN: opt -debug-only=branch-prob -passes=jump-threading -S %s 2>&1 | FileCheck %s --check-prefix=CHECK-NOBPI
; REQUIRES: asserts

; Make sure that we clear edge probabilities for bb1 as we fold
; the conditional branch in it.

; CHECK: eraseBlock bb1
; CHECK-NOBPI-NOT: eraseBlock bb1

define i32 @foo(i32 %arg) !prof !0 {
; CHECK-LABEL: @foo
  %cond1 = icmp eq i32 %arg, 42
  br i1 %cond1, label %bb1, label %bb2

bb2:
  ret i32 2

bb1:
  %cond2 = icmp eq i32 %arg, 42
  br i1 %cond2, label %bb3, label %bb4

bb3:
  ret i32 3

bb4:
; CHECK-NOT: bb4:
  ret i32 4
}

!0 = !{!"function_entry_count", i64 0}