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loop.js
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136 lines (125 loc) · 3.19 KB
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
/*
RUN: %hermes -O -dump-bytecode %s \
RUN: | %FileCheck --match-full-lines -check-prefix HBC %s
RUN: %hermes -O -dump-jitcode %s \
RUN: | %FileCheck --match-full-lines -check-prefix JIT %s
REQUIRES: jit, jit_dis
*/
var logger = typeof print === "undefined"
? console.log
: print;
function power (base, pow) {
var res = 1;
while (--pow >= 0) {
res *= base;
}
return res;
}
logger(power(2, 10));
//HBC-LABEL: Function<power>(3 params, 7 registers, 0 symbols):
//HBC-NEXT: Offset in debug table: {{.*}}
//HBC-NEXT: LoadParam r5, 1
//HBC-NEXT: LoadConstUInt8 r4, 1
//HBC-NEXT: LoadConstZero r3
//HBC-NEXT: LoadParam r0, 2
//HBC-NEXT: ToNumber r0, r0
//HBC-NEXT: SubN r2, r0, r4
//HBC-NEXT: Mov r1, r4
//HBC-NEXT: Mov r0, r1
//HBC-NEXT: JNotGreaterEqualN L1, r2, r3
//HBC-NEXT: L2:
//HBC-NEXT: Mul r1, r1, r5
//HBC-NEXT: SubN r2, r2, r4
//HBC-NEXT: Mov r0, r1
//HBC-NEXT: JGreaterEqualN L2, r2, r3
//HBC-NEXT: L1:
//HBC-NEXT: Ret r0
//JIT-LABEL:Compiled Code of FunctionID: 1
//JIT-NEXT:pushq %rbp
//JIT-NEXT:movq %rsp, %rbp
//JIT-NEXT:pushq %r15
//JIT-NEXT:pushq %rbx
//JIT-NEXT:movq %rdi, %rbx
//JIT-NEXT:pushq 3968(%rbx)
//JIT-NEXT:pushq %rcx
//JIT-NEXT:movq 3952(%rbx), %r15
//JIT-NEXT:movq %r15, 3968(%rbx)
//JIT-NEXT:leaq {{.*}}, %rax
//JIT-NEXT:movq %rax, 3952(%rbx)
//JIT-NEXT: BB0:
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: cmpl{{.*}}
//JIT-NEXT: jb{{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: xorq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: cmpl{{.*}}
//JIT-NEXT: jb{{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: cmpl{{.*}}
//JIT-NEXT: jae{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: subsd{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: ucomisd{{.*}}
//JIT-NEXT: jb{{.*}}
//JIT-NEXT: BB1:
//JIT-NEXT: cmpl{{.*}}
//JIT-NEXT: jae{{.*}}
//JIT-NEXT: cmpl{{.*}}
//JIT-NEXT: jae{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: mulsd{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: subsd{{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movsd{{.*}}
//JIT-NEXT: ucomisd{{.*}}
//JIT-NEXT: jae{{.*}}
//JIT-NEXT: BB2:
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: movl {{.*}}
//JIT-NEXT: BB3:
//JIT-NEXT:movq %r15, 3952(%rbx)
//JIT-NEXT:popq %rcx
//JIT-NEXT:popq 3968(%rbx)
//JIT-NEXT:popq %rbx
//JIT-NEXT:popq %r15
//JIT-NEXT:popq %rbp
//JIT-NEXT:retq
//JIT-LABEL:;SLOW PATHS
//JIT-NEXT: leaq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: callq {{.*}}
//JIT-NEXT: testl{{.*}}
//JIT-NEXT: je {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: jmp {{.*}}
//JIT: leaq {{.*}}
//JIT-NEXT: leaq {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: callq {{.*}}
//JIT-NEXT: testl{{.*}}
//JIT-NEXT: je {{.*}}
//JIT-NEXT: movq {{.*}}
//JIT-NEXT: jmp {{.*}}
//JIT: 1024