File: function-specialization-noexec.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (36 lines) | stat: -rw-r--r-- 888 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
32
33
34
35
36
 
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s

; The if.then block is not executed, so check that we don't specialise here.

; CHECK-NOT: @foo.specialized.1(
; CHECK-NOT: @foo.specialized.2(

target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"

@A = external dso_local constant i32, align 4
@B = external dso_local constant i32, align 4

define dso_local i32 @bar(i32 %x, i32 %y) {
entry:
  %tobool = icmp ne i32 %x, 0
  br i1 false, label %if.then, label %if.else

if.then:
  %call = call i32 @foo(i32 %x, ptr @A)
  br label %return

if.else:
  %call1 = call i32 @foo(i32 %y, ptr @B)
  br label %return

return:
  %retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
  ret i32 %retval.0
}

define internal i32 @foo(i32 %x, ptr %b) {
entry:
  %0 = load i32, ptr %b, align 4
  %add = add nsw i32 %x, %0
  ret i32 %add
}