78 lines
2.0 KiB
LLVM
78 lines
2.0 KiB
LLVM
; RUN: opt -S -hotcoldsplit -hotcoldsplit-threshold=0 < %s | FileCheck %s
|
|
|
|
; Source:
|
|
;
|
|
; extern __attribute__((cold)) void sink();
|
|
; extern void sideeffect(int);
|
|
; void foo(int cond1, int cond2) {
|
|
; while (true) {
|
|
; if (cond1) {
|
|
; sideeffect(0); // This is cold (it reaches sink()).
|
|
; break;
|
|
; }
|
|
; if (cond2) {
|
|
; sideeffect(1); // This is cold (it reaches sink()).
|
|
; break;
|
|
; }
|
|
; sideeffect(2);
|
|
; return;
|
|
; }
|
|
; sink();
|
|
; sideeffect(3);
|
|
; }
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.14.0"
|
|
|
|
; CHECK-LABEL: define {{.*}}@_Z3fooii.cold.1
|
|
; CHECK: call void @_Z10sideeffecti(i32 1)
|
|
|
|
; CHECK-LABEL: define {{.*}}@_Z3fooii.cold.2
|
|
; CHECK: call void @_Z10sideeffecti(i32 0)
|
|
|
|
; CHECK-LABEL: define {{.*}}@_Z3fooii.cold.3
|
|
; CHECK: call void @_Z4sinkv
|
|
; CHECK: call void @_Z10sideeffecti(i32 3)
|
|
|
|
define void @_Z3fooii(i32, i32) {
|
|
%3 = alloca i32, align 4
|
|
%4 = alloca i32, align 4
|
|
store i32 %0, i32* %3, align 4
|
|
store i32 %1, i32* %4, align 4
|
|
br label %5
|
|
|
|
; <label>:5: ; preds = %2
|
|
%6 = load i32, i32* %3, align 4
|
|
%7 = icmp ne i32 %6, 0
|
|
br i1 %7, label %8, label %9
|
|
|
|
; <label>:8: ; preds = %5
|
|
call void @_Z10sideeffecti(i32 0)
|
|
br label %14
|
|
|
|
; <label>:9: ; preds = %5
|
|
%10 = load i32, i32* %4, align 4
|
|
%11 = icmp ne i32 %10, 0
|
|
br i1 %11, label %12, label %13
|
|
|
|
; <label>:12: ; preds = %9
|
|
call void @_Z10sideeffecti(i32 1)
|
|
br label %14
|
|
|
|
; <label>:13: ; preds = %9
|
|
call void @_Z10sideeffecti(i32 2)
|
|
br label %15
|
|
|
|
; <label>:14: ; preds = %12, %8
|
|
call void @_Z4sinkv() #3
|
|
call void @_Z10sideeffecti(i32 3)
|
|
br label %15
|
|
|
|
; <label>:15: ; preds = %14, %13
|
|
ret void
|
|
}
|
|
|
|
declare void @_Z10sideeffecti(i32)
|
|
|
|
declare void @_Z4sinkv() cold
|