From 6f0f1f85ebf218aef8839e17442dbaf15460be4f Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Mon, 5 Feb 2018 16:36:15 +0100
Subject: Split double MoveOperands that conflict with floats.
---
js/src/jsapi-tests/testJitMoveEmitterCycles.cpp | 94 ++++++++++++++++++++++++-
1 file changed, 93 insertions(+), 1 deletion(-)
(limited to 'js/src/jsapi-tests')
diff --git a/js/src/jsapi-tests/testJitMoveEmitterCycles.cpp b/js/src/jsapi-tests/testJitMoveEmitterCycles.cpp
index 416587293..c1c2baddd 100644
--- a/js/src/jsapi-tests/testJitMoveEmitterCycles.cpp
+++ b/js/src/jsapi-tests/testJitMoveEmitterCycles.cpp
@@ -6,6 +6,7 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#if defined(JS_SIMULATOR_ARM)
+
#include "jit/arm/Assembler-arm.h"
#include "jit/arm/MoveEmitter-arm.h"
#include "jit/arm/Simulator-arm.h"
@@ -528,5 +529,96 @@ BEGIN_TEST(testJitMoveEmitterCycles_autogen3)
return true;
}
END_TEST(testJitMoveEmitterCycles_autogen3)
+BEGIN_TEST(testJitMoveEmitterCycles_bug1299147_1)
+{
+ using namespace js;
+ using namespace js::jit;
+ LifoAlloc lifo(LIFO_ALLOC_PRIMARY_CHUNK_SIZE);
+ TempAllocator alloc(&lifo);
+ JitContext jc(cx, &alloc);
+ cx->runtime()->getJitRuntime(cx);
+ MacroAssembler masm;
+ MoveEmitter mover(masm);
+ MoveResolver mr;
+ mr.setAllocator(alloc);
+ Simulator* sim = Simulator::Current();
+ // S2 -> S0
+ // S2 -> S6
+ // S3 -> S1
+ // S3 -> S7
+ // D0 -> D1
+ // D0 -> D2
+ TRY(mr.addMove(MoveOperand(s2), MoveOperand(s0), MoveOp::FLOAT32));
+ TRY(mr.addMove(MoveOperand(s2), MoveOperand(s6), MoveOp::FLOAT32));
+ sim->set_s_register_from_float(2, 2);
+ TRY(mr.addMove(MoveOperand(s3), MoveOperand(s1), MoveOp::FLOAT32));
+ TRY(mr.addMove(MoveOperand(s3), MoveOperand(s7), MoveOp::FLOAT32));
+ sim->set_s_register_from_float(3, 4);
+ TRY(mr.addMove(MoveOperand(d0), MoveOperand(d1), MoveOp::FLOAT32));
+ TRY(mr.addMove(MoveOperand(d0), MoveOperand(d2), MoveOp::FLOAT32));
+ sim->set_d_register_from_double(0, 1);
+ // don't explode!
+ TRY(mr.resolve());
+ mover.emit(mr);
+ mover.finish();
+ masm.abiret();
+ JitCode* code = linkAndAllocate(cx, &masm);
+ sim->call(code->raw(), 1, 1);
+ float f;
+ double d;
+ sim->get_double_from_d_register(1, &d);
+ CHECK(d == 1);
+ sim->get_double_from_d_register(2, &d);
+ CHECK(d == 1);
+ sim->get_float_from_s_register(0, &f);
+ CHECK(int(f) == 2);
+ sim->get_float_from_s_register(6, &f);
+ CHECK(int(f) == 2);
+ sim->get_float_from_s_register(1, &f);
+ CHECK(int(f) == 4);
+ sim->get_float_from_s_register(7, &f);
+ CHECK(int(f) == 4);
+ return true;
+}
+END_TEST(testJitMoveEmitterCycles_bug1299147_1)
+BEGIN_TEST(testJitMoveEmitterCycles_bug1299147)
+{
+ using namespace js;
+ using namespace js::jit;
+ LifoAlloc lifo(LIFO_ALLOC_PRIMARY_CHUNK_SIZE);
+ TempAllocator alloc(&lifo);
+ JitContext jc(cx, &alloc);
+ cx->runtime()->getJitRuntime(cx);
+ MacroAssembler masm;
+ MoveEmitter mover(masm);
+ MoveResolver mr;
+ mr.setAllocator(alloc);
+ Simulator* sim = Simulator::Current();
+ // S2 -> S5
+ // S2 -> S6
+ // D0 -> D1
+ TRY(mr.addMove(MoveOperand(s2), MoveOperand(s5), MoveOp::FLOAT32));
+ TRY(mr.addMove(MoveOperand(s2), MoveOperand(s6), MoveOp::FLOAT32));
+ sim->set_s_register_from_float(2, 2);
+ TRY(mr.addMove(MoveOperand(d0), MoveOperand(d1), MoveOp::FLOAT32));
+ sim->set_d_register_from_double(0, 1);
+ // don't explode!
+ TRY(mr.resolve());
+ mover.emit(mr);
+ mover.finish();
+ masm.abiret();
+ JitCode* code = linkAndAllocate(cx, &masm);
+ sim->call(code->raw(), 1, 1);
+ float f;
+ double d;
+ sim->get_double_from_d_register(1, &d);
+ CHECK(d == 1);
+ sim->get_float_from_s_register(5, &f);
+ CHECK(int(f) == 2);
+ sim->get_float_from_s_register(6, &f);
+ CHECK(int(f) == 2);
+ return true;
+}
+END_TEST(testJitMoveEmitterCycles_bug1299147)
-#endif
+#endif // JS_SIMULATOR_ARM
--
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