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