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| ; 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
|